Sunday, April 24, 2005

A Conclusive Sleeptracker Watch Review

Note that the following review expresses my opinions. Each Sleeptracker user will have slightly varying experiences.

My experience with Sleeptracker prompted me to write this review. If you want to see a mostly positive review of Sleeptracker checkout the Gear Live review. If you do not know what the Sleeptracker is, make sure to look at the Innovative Sleep Solutions website.

How it Works

Sleep tracker is a watch you wear during the night. You set an alarm time and a ‘window’ time within which the Sleeptracker watch will sound its alarm if it detects that you are almost awake. Sleeptracker detects when you are ‘almost awake’ through an accelerometer (a device that detects movement) in the watch. In effect, when your arm shakes or moves in a certain way in your sleep, Sleeptracker believes you are almost awake. When one of these arm shakes/movement occurs during your wakeup window, the Sleeptracker alarm sounds.

Success Rate

To clarify, my definition of "succes" is when Sleeptracker successfully caused me to get out of bed after an ‘almost awake’ moment. Throughout my first three weeks with Sleeptracker, I had a success rate less than 1 in 4 nights. One primary reason why I bought Sleeptracker was to make my wakeup routine MORE routine. However, my testing has shown that (for me), Sleeptracker is less consistent than my previous traditional alarm clock routine. This is the case for several reasons: Sleeptracker’s quiet alarm ( I don’t have to get out of bed to shut the alarm off), and the fact that there are many external interruptions (spouse’s alarm, pets, children, neighbors, etc.) that cause Sleeptracker to disappoint.

The Quiet Alarm

Lee Loree, one of the Sleeptracker guys from Innovative Sleep Solutions, told me that the Sleeptracker focus group(s) preferred a quieter alarm. This conclusion makes sense to me, especially since Sleeptracker is supposed to be a gentle wakeup device. However, once I had gotten past my initial ‘wow-factor’ morning wakeups, I began to ignore Sleeptracker’s alarm in the mornings. One of my suggestions to Lee is that this failure mechanism could be minimized effectively by having a transmitter that can trigger a remote alarm clock, which in turn sounds an alarm that ascends in volume until you get out of bed and turn it off.

The Next Sleeptracker

Mr. Loree did mention that the next Sleeptracker design (due out sometime later this year) will incorporate a small vibrating mechanism in addition to the alarm. While I think this will help somewhat, I think much more is needed to increase Sleeptracker’s effectiveness. I also wonder how much this new addition will affect the watch's long-term reliability (especially the accelerometer) and battery life.

The Practicality of Using the Watch Long-Term

With Sleeptracker, you have to eliminate any possible noise source that may cause unnatural 'almost awake' moments during your wakeup window, or else Sleeptracker will sound its alarm. (This includes coordinating alarm times with whomever you may live with, something I discovered the hard way.) While this may seem like common sense, it is surprising to discover how many "normal" nighttime events can cause these unnatural wakeup events.

Before I went to bed each night, I did the following:

  1. Set Sleeptracker wakeup window (0, 10, 20, or 30 minutes)
  2. Set Sleeptracker "Go to Bed" Time
  3. Set Sleeptracker Alarm time
  4. Set a normal, louder alarm as a secondary backup in case Sleeptracker didn't wake me.

Realistically, that's too complicated to do on a nightly basis (albeit most of the set-times shouldn't change on a daily basis, but you still are inclined to check each time before going to bed.)

Patent Information

I found it curious that Innovative Sleep Solutions does not stamp their Sleeptracker watch with ‘patent pending’ or a patent number.In fact, I could not find any mention of a patent on the Sleeptracker website or their product manual. I’ve speculated a bit on possible patents, but the registration for each of those doesn’t make mention of Innovative Sleep Solutions, Lee Loree, or any of the other people I found who are associated with the company.

Concept a Bit too Beta

Another Sleeptracker user commented that Sleeptracker seems a bit too ‘beta’ at this point. I couldn’t agree more. There may be potential for the Sleeptracker concept, but there are definitely a few bugs in the system. I found it to need a more effective wakeup mechanism, easier ‘snooze’ features, and most importantly fewer false positive ‘almost awake’ alarms.

An example of the watch being too beta is the fact that if you sleep with your arm under your pillow (which I do sometimes) or in some other location that restricts movement, Sleeptracker's effectiveness will necessarily decrease, and your sleep cycle times will be incorrectly inflated.

Also, you know there must be a good number of bugs to work out if the inventor is still testing his concept: see Gear Live’s interview with Lee Loree, the Sleeptracker inventor.

The 30-Day Money Back Guarantee

I have to commend Innovative Sleep Solutions on their 30-day money back guarantee. Although I had to pay for shipping both ways (less than $12 total), the company made it fairly easy to exercise that guarantee. I called their phone number, left a message, and someone (Lee Loree) returned my call with the return address. I sent the watch back a day or two ago, and that was it.

Final Conclusion

In my opinion, Sleeptracker in its current form is one of those gadgets that will end up on a shelf, collecting dust. As a gadget geek, I had great intentions in purchasing Sleeptracker: I planned to improve my sleeping habits by ensuring that I woke up on time, every time. Maybe my expectations were too high, but I hoped to at least introduce a more consistent method of waking up in the morning and actually feeling awake.

For me, the Sleeptracker operating concept has two primary weaknesses: too subtle of a wakeup mechanism and too high a probability for unnatural ‘almost awake’ alarms. Obviously, my second criticism is somewhat dependent on my sleeping environment, but unless you live in a cave you will undoubtedly face some disturbances during your sleep.

What I am Going to Try Next

I think some type of sleep-monitoring device would be great to help determine when my alarm should sound. However, I don’t know of any such products, including Sleeptracker, that have proven that method to be especially effective. I now think it may be a good idea to induce an environment where I can be gradually woken up. The concept I have found that most demonstrates this environmental inducement is an alarm clock with a light that gradually intensifies in its luminosity (one example is the Soleil Sun Alarm). Maybe I’ll give that device a whirl now….I hope it works!

Wednesday, April 20, 2005

A few more Sleeptracker Nights

It's been a few more nights with Sleeptracker, and the watch has become more successful.....kind of. Over the past five nights it's been on track four times, sounding just as I roll over in bed.

However, through my testing during the past month, I've becomed less and less inclined to listen to Sleeptracker (just like a regular alarm clock). In other words, the initial excitement has worn off and now I expect Sleeptracker to wake me up at a relatively awake moment of consciousness in which I feel ready to roll out of bed. What I have discovered, however, is that the longer I have Sleeptracker, the more it seems like a traditional alarm clock that simply goes off earlier than the time I set it to go off.

I'll be compiling my full Sleeptracker review in the next couple days, so make sure to keep your eyes open for the review.

Thanks again for your comments.

Friday, April 15, 2005

Response to Comments

I really appreciate all of your comments of insight and gratitude. In an effort to make my evaluation that much more objective, I'm responding to your comments.

Comment: You can also try putting up double sided tape where the cat scratches. They hate that

Thanks! I'll try that. The cats have been behaving themselves for the most part lately.

Comment: FYI, you do not have to set TO BED - That is only if you wish to study your sleeping data... The alarm will work regardless of TO BED being set or not.

Point well-taken. I suppose I can just set an arbitrarily early 'TO BED' time and just consciously remember when I went to bed the night before if I want to record data. That makes the usage of Sleeptracker a reasonable amount easier.

Comment: I seem to be reading that your biggest complaint is that the Sleeptracker doesn't work if other things (alarms, cats) wake you up anyway. That seems pretty straight forward. It also implies that you're always being woken up at non-ideal times. Isn't that valuable information in and of itself?

There is no doubt that Sleeptracker has at least provided me with the motivation to remedy these annoyances, and in certain cases, the watch provided me a bit more quantifiable data regarding the effect of what might disturb my sleep.

In fact, I considered recording the time while I was asleep using my laptop and listening to the time segments immediately preceding my 'almost awake' moments to determine whether they were induced by an annoyance or just me. However, that was a bit much for my study at this time....maybe for a future study. Plus, I decided that, to a certain extent, there are annoyances that I can control (the cats, etc.) and others that I cannot control as easily (noisy people outside on occasion--of course I did call the police about the people at the pool @1AM last night).

Comment: Wow, some excellent (albeit slightly disappointing) insights. Your sleeping environment sounds like a challenging one, but not more than for a lot of people I suppose. That was a good point about the novelty of the watch factoring in to how awake you feel, the watch definitely needs more than a few nights before it can be judged for that reason.

As weird as it may seem, I do think that the "Wow" factor played a role in my first Sleeptracker success (I may have slept more lightly due to its novelty).

Comment: Thanks for the much needed review. It seems too good to be true from the Gear Live review. So it will be nice to have an objective 2nd opinion before I buy the watch. If this thing works as well as GL says and you verify that then I will be 1st in line.

The Gear Live review is a large reason why I purchased the watch. As a result of my Sleeptracker experience, I hope that in the future I am better able to look beyond a very positive (or negative) review and analyze the underlying data for that review.

Comment: To keep it from beeping when browsing the menus, simply press the GLO button first; the watch will not beep while the backlight is on.


A Few Successes?

Over the past three mornings, I have had two pseudo-Sleeptracker successes. Yesterday morning Sleeptracker woke me when I moved in bed during my window, but I said the heck with it and went back to followup alarm at the 'alarm' time though...very curious. Maybe it thought I was awake.

This morning was a similar story with Sleeptracker waking me as I rolled over in bed during the window. Once again, I HAD to keep sleeping...but I did wakeup less than half an hour later when my wife's alarm went off.

An Observation Regarding My Sleeping

On a sidenote, an interesting observation that I've made regarding my sleeping cycles is that when I stay up later than usual, I seem to sleep more soundly (i.e. there is more time between my 'almost awake' moments). Last night, for example, I didn't get to bed until 1 with an alarm time set at 6:30 (30 min window). After observing the data, I noted the length between 'almost awake' moments...especially in comparison to the nights directly preceding last night. Also, a similar scenario occurred earlier in my tests....I'll have to look at that for my final analysis.

In the meantime, a couple of near successes can be recorded for Sleeptracker.

10 more days of testing before the final verdict. Can Sleeptracker turn the tide and have a significant history of success...I'm looking forward to figuring that out.


Lastly, I'll mention something that someone said in a comment, which is that you can make Sleeptracker not beep between screens if you've turned the backlight on....of course, you can only turn the backlight on while you are on certain screens. A good point, though, at least I don't have to disturb my wife while I look at the data immediately after waking.

Tuesday, April 12, 2005

A Few More Failures

Since my last post, I have unfortunately become increasingly unimpressed with Sleeptracker.

To Bed: 12:30
Wakeup: 6:30
Window: 30 minutes

Evidently, the alarm went off around 6:24, when I supposedly had an 'almost awake' moment. However, I was either not really 'almost awake,' the alarm was too quiet, and/or I had my arm too far under the covers to hear the watch enough to wake me. Anyhow, my wife verified that the alarm went off, but I sure did not wake up (until 7:00 AM when she woke me).

Burdensome Logistics of Using Sleeptracker

So here is what you'll have to do each night if you live alone and own a Sleeptracker:
1. Set Sleeptracker wakeup window (0, 10, 20, or 30 minutes)
2. Set Sleeptracker "Go to Bed" Time
3. Set Sleeptracker Alarm time
4. Set a normal, louder alarm as a secondary backup in case Sleeptracker does not wake you.

For me, that's too complicated to do on a nightly basis (albeit most of the times shouldn't change on a daily basis, but you still are inclined to check each one before going to bed.)

Add to that list that you have eliminate any possible noise source that may cause a premature 'almost awake' moment. (This includes coordinating alarm times with whomever you may live with.) These issues seem like common sense to do, but prior to Sleeptracker, I simply didn't worry about these things (my wife and I go to work at similar times--if her alarm went off it was o.k.).

Yesterday morning was another episode of uncoordinated alarms; hers was set too early, which woke me up and set Sleeptracker off.

Friday, Saturday, and Sunday mornings were similarly dismal wakeups with Sleeptracker not performing as advertised. It seems to me that there are simply too many variables that have to remain absolutely in-place for Sleeptracker to work.

I'm awake, but Sleeptracker thinks I'm asleep!

That, plus on Saturday when I woke up (before Sleeptracker sounded), I looked at the time on Sleeptracker to see if I had missed the window or what the deal was. I stayed in that position and watched the seconds go by for about four minutes until the "alarm" time rolled around and the alarm sounded. In other words, Sleeptracker thought I was deep asleep when I was awake and staring at the watch face for about four or five minutes! This was the most evident failure yet.

The night before that failure I dropped the watch from about five feet onto the carpeting; maybe the accelerometer is overly sensitive... However, the watch did log 'almost awake' events for that night, just not during my 30 minute window when I woke up and stared at the watch! I suppose I should have waved my arm around so it would know I was awake and it could sound :-)

Hypothesizing about Another Sleeptracker Weakness

Speaking of the acclerometer, I am hypothesizing (partly from my observations) that, if you sleep with your arm under your pillow (which I do sometimes) or in some other location that restricts movement Sleeptracker's effectivity may decrease and your sleep cycle times may be incorrectly inflated. Just a thought.

Increasingly, I am considering returning the watch (30 day 'money-back' guarantee) for a refund.

Current Conclusions

While I have not yet finished my testing or compiled the results of my test, if someone asked me about Sleeptracker today this is what I'd tell them.

If I had to make a recommendation at this point, it would be to either:
1. Don't buy Sleeptracker.
2. If you are really curious about Sleeptracker's potential, buy it and retain the box and everything else so that you can return it during the '30 day money back' guarantee period.

In the meantime, I'll continue testing; we'll see what this week holds for Sleeptracker....

Thursday, April 07, 2005

Possible Sleeptracker Patent Info

The Gadget Lounge review of Sleeptracker quotes Lee Loree, one of the Sleeptracker partners, as stating "Sleeptracker monitors and records brief periods of movement, by way of a small accelerometer, that are indicative of light stages of sleep."

After doing a little research at the U.S. Patent & Trademark office and a few international patent organizations, I have determined that these are a few of the likely pre-grant patents that Sleeptracker may be utilizing for its watch:


I also saw a Canadian registered patent application at the Canadian agency's website. However, that one looks like it is owned by Procter & Gamble...

Another interesting information trail was found by looking up the Sleeptracker trademark at the U.S. Patent & Trademark Office. You can check that entry out by looking here.

Feel free to add to my speculative list of patents for how Sleeptracker functions...I'm really curious, so help me figure it out...Thanks!

A Primary Sleeptracker Criticism

Yesterday morning's Sleeptracker wakeup was a bust as was this morning's wakeup.

The reason I believe to be part of Sleeptracker's largest flaw:

You have to arrange your sleeping environment, habits, and everything else around the watch, and even then it fails because certain noise-producing events are simply out of your control.

Yesterday morning, I had the alarm set for a 30 minute window 6:00-6:30. At roughly 6:15, one of our cats began scratching at the door because he was hungry. What's bad is that his scratching woke me up which then caused the chain reaction of setting off the Sleeptracker alarm. Talk about annoying! --not only was I awoken during what was NOT an 'almost awake' moment, but I was kept awake for 20 additional seconds by the Sleeptracker alarm, which you cannot shutoff once it begins sounding. AAAhhhhhhhhhhhhh!!!!!!!!!!!!!!!! (CORRECTION: I've since found out that you can turn off the alarm by holding down the GLO button.)

So last night, I made doubly sure that the cats' food and water was taken care of before going to sleep. HOWEVER, I made the stupid mistake of not coordinating my alarm time with my wife's alarm time. Her cell phone alarm went off at 6:13 and woke me up. Again, not only is her alarm loud and obnoxious, but by waking me up it caused the Sleeptracker alarm to go off after about 10 seconds (latency). That equated to another (10 sec latency + 20 sec alarm) 30 seconds of fun wakeup alarm noise...

After the Sleeptracker alarm went off, I tried going back to sleep, even though I was livid mad (grouchy) because of the chain alarm reaction, and the fact that it failed due to dumb stuff two days in a row. Of course, as soon as 6:30 rolled around, the alarm went off once gentle wakeup this morning either.

What I have concluded from the past two mornings is that if you have any of the following...

  • an infant
  • a wife/husband with a regular alarm
  • pets that make noise (scratching doors, howling, and/or meowing)
  • neighbors that make noise occasionally had better do your best to minimize the possiblity that they will wake you up, ESPECIALLY during your alarm window. That window is the pseudo-sacred time when Sleeptracker has to do ITS magic. If you are woken up by extraneous noise, you will get a double dose of aggravating noise.

Going Forward
I spoke with my wife this morning about aligning our alarms so that they don't conflict, and I plan to try taping foil to the outside of our bedroom door to deter the cats from scratching (if anyone has other ideas for detering cat scratching on the door, let me know--and yes, we do have a dedicated scratching post for them).

Another Criticism
One other flaw with Sleeptracker that I discovered yesterday and today is that besides having no 'snooze' function, if you change the alarm time after events like mine, you lose all of your 'almost awake' data from that night. If you want to record your data and you want to move your alarm time later (manual 'snooze'), you need to wake up fully, record the data, set your new alarm time, and then go back to sleep.... Of course, by the time you do all that, you'll be too awake to get much more sleep. So I apologize, but when I changed my alarm time from 6:30 to 7:30 yesterday and today, I lost all of my statistical data to record/report....that just makes me mad. Oh can't expect it to be perfect I suppose....I'll try it again tonight after doing my best to eliminate any possible extraneous sleep interruptions.

Till next time....

Tuesday, April 05, 2005

Sleeptracker Watch Review - The first 4 Nights

It's Tuesday and I have had my Sleeptracker since last Friday. Thus far, it has worked (kind-of) one time and failed (kind-of) three times.

Through my initial four nights with Sleeptracker I have made the following observations:

  1. Other reviewers have mentioned that the alarm is relatively quiet, and while it is 'relatively' quiet, it still wakes my wife, AND I have not found any way to stop the alarm once it begins sounding. The alarm is a pseudo-quiet rapid beeping.
  2. There appears to be some latency for measuring 'almost awake' moments. On a few occasions I've woken up and looked at the time on Sleeptracker. When I review the logged times, however, they are generally a minute or so after that occurrence.
  3. A curious thing occurred this morning (Tuesday):
    1. Sleeptracker successfully woke me at 5:45 when I was 'almost awake.'
    2. I don't wear Sleeptracker during the day and took it off my arm at ~5:58, just prior to hopping into the shower.
    3. At 6:00, which was the set 'alarm time,' the alarm went off again. At this point I believe that if you take Sleeptracker off your arm between the time you wake up due to an 'almost awake' alarm and the set alarm time, Sleeptracker thinks you are asleep and sounds its alarm at the set time.

Friday Night
I took a nap that adversely affected results for that evening's sleep; I woke Saturday morning prior to my Sleeptracker 'window'.

Conclusion - FAILED, but I'm blaming it on my stupidity for taking a nap.

Saturday Night
I went to bed fairly late ~1:59 AM with the alarm set for 9:30 and a window of 20 minutes (20 min is the recommended window). There were loud people in the pool next to our apartment until 2ish, which kept me somewhat restless. Rather than waking up during my 9:10-9:30 window, I woke up at 9:30 after the alarm sounded (I did not have an 'almost awake' moment during the 20 minute window). For that night I credited the 'failure' to the loud people in the pool.

Next Saturday night I will be prepared: I will arm myself with earplugs. When my Sleeptracker goes off in the morning, I will instruct my wife to gently wake me (i.e. hit me).

To Bed - 1:59
Window - 20 minutes
Alarm (set) - 9:30
Alarm (actual) - 9:30
Number of cycles - 12
Average length - 30:07
Conclusion - FAILED, but we'll blame it on the loud people rather than the watch this time.

Sunday Night
I had high expectations going into Sunday night. Friday and Saturday were anomalies; surely no one would be making a lot of noise on a Sunday night!

I've been foiled again. My wife, who is in law school, had a few things due in the morning and was up until 2:45.

To Bed - 0:00
Window - 20 minutes
Alarm (set) - 6:30
Alarm (actual) - 6:30
Number of cycles - 13
Average length - 28:26
Conclusion - FAILED, and no one gets blamed this time; not my wife and not the watch.

Monday Night
Now that I've gone through 3 anomalies, you'd think that I would be able to get eliminate them one way or another and get the Sleeptracker and I to mesh.

Success! My wife did not stay up late, the neighbors and pool-goers were quiet, and all is well. The number of cycles was cut in half from the previous two nights, and the average cycle time was doubled!

To Bed - 0:00
Window - 30 minutes
Alarm (set) - 6:00
Alarm (actual) - 5:45
Number of cycles - 6
Average length - 57:27
Conclusion - SUCCESS

Initial Successful Wakeup Impression
After experiencing my first 'successful' Sleeptracker sleep, I was surprisingly awake for 5:45 in the morning, and it was much easier to roll out of bed (although I did sit there for 10 minutes prior to getting ready for the day - 5:45 is early!). Part of the ease of this morning's wakeup may still be the novelty of Sleeptracker, so I guess we'll have to wait and see!

I guess that does it for now. I plan to begin optimizing my sleeping strategy as my 30 day evaluation continues, but I will try to maintain a consistent sleep schedule in an effort to keep my evaluation as scientific as possible given only one test subject.

Sleeptracker Watch Review - 30 Days, The Intro

The Sleeptracker website,, describes their Sleeptracker watch as follows:

The revolutionary new SLEEPTRACKER® monitors your body and continuously looks for your best possible waking times. SLEEPTRACKER® wakes you up at just the right moment-during a window of time that YOU set. Imagine not feeling tired in the morning and getting a few extra minutes out of your day. Now it’s possible with SLEEPTRACKER®.

My review will be as scientifically critical as possible to ensure that, if you decide to buy a Sleeptracker watch, you know exactly what you are getting into. However, I DO NOT claim that your experience with Sleeptracker will be identical or even similar to mine: to each his own.

At the conclusion of my study (end of April), I will summarize success/fail data, sleep data, conclusions, and possible improvements that Sleeptracker should consider incorporating into future design iterations.

Experiment (Evaluation) Background

Test Subject:

  • Male, in my 20s
  • I have a physics degree, am working towards my MBA, and have worked as an engineer (flight-test, reliability, systems, and manufacturing operations) on a number of fighter aircraft programs, the Space Shuttle (systems), and the International Space Station (systems).

Test Context:

  • Married to a law student (lots of homework)
  • 2 cats
  • a king-sized mattress
  • top floor apartment (generally not too much noise unless the people below us are feeling roudy, and our apartment is by the pool).

I will update this page at least once every three days during my initial 30 days (money-back guarantee period) with Sleeptracker.

Sleep Philosophy
My intention for purchasing the Sleeptracker was to help me minimize the amount of influence that sleep seems to have on my (or anyone’s) life. To me, sleep is somewhat of a necessary evil, but it has always been a drag to get up in the morning having been jolted awake by some annoyingly loud and obnoxious alarm that, I have previously ’snoozed’ for a lengthy time (30 minutes or more). My desire is that sleep is just something that I do from midnight to 6 in the morning, period.

Other reviews and pictures of Sleeptracker: review
Gadget Lounge
troyworks @ livejournal

Possible Patents
that this may be registered under:

Perform a search at the U.S. Patent and Trademark Office website for these:
20050054940 (Heart Rate Variability Monitor)
20020080035 (Measuring body temperature?)


I ordered the Sleeptracker after doing a little research and finding only positive reviews about it; for my review I will attempt to provide a bit more constructive criticism.

I have not yet found an accurate description of the watch’s functionality online; I’ve tried to remedy that with my descriptions and initial impressions below.

Time/Day/Date Display

The Good

  • Well displayed AM/PM, day, date (no year), time (including second counter), and alarm status (on/off)

The Bad

  • Cannot reset second counter while setting time
  • Cannot display time in 24hr format (only 12 hr AM/PM format)
  • Setting the minutes is slightly tedious (the fastest the minutes move are by 2s rather than 5 min increments)

Alarm Display

The Good

  • Straightforward display and setting.

The Bad

  • As with the setting the time, setting the minutes is slightly tedious as the fastest they scroll is in 2 min increments.
  • The only way to enable/disable the alarm is on the alarm page using the ‘GLO’ button.

Window Display

The Good

  • Relatively straightforward screen used to set the window for waking up (if you set the alarm for 6:30 and the window for 30 minutes, the earliest you will be woken is 6:00.)

The Bad

  • Only four possible window lengths (0 minutes, 10 minutes, 20 minutes, or 30 minutes). I suppose that using a 0 minute window turns the watch into a traditional “ring at the alarm time” watch only.

To bed Display

The Good

  • Part of the watch’s primary feature, you set this screen to tell the watch when to start monitoring your sleeping.

The Bad

  • You would think that the “To Bed” feature would be automatic; that is, if the watch is already capable of telling when I’m ‘almost awake,’ why can’t it tell when I’ve gone to sleep? If you stay up late or want to go to bed early, requiring that this be set in addition to the alarm and the window is a little much (three settings rather than one with a ‘regular’ alarm clock).

Data Display

The Good

  • This is the ‘cool’ screen on the watch. It displays the log of ‘almost awake’ moments for the previous night’s sleep.
  • This screen also displays the average time between ‘almost awake’ moments, which can be a handy yet simple metric.

The Bad

  • It would be nice to have one or two additional metrics displayed on this screen, such as when you actually fell asleep.

Other Comments

I was surprised that the watch does not have a chronograph and that you cannot keep it from beeping when changing between screens (i.e. every time you hit the “mode” button, the watch beeps and you cannot turn it off).

Make sure to checkout all of my Sleeptracker review adventure updates at!