Reviews for LARK Un-Alarm Clock and Sleep Sensor

When I heard about Lark I knew immediately that I needed one. I rarely use the Un-Alarm clock - although it's certainly a useful feature. As someone in the early stages of diagnosis for sleep apnea, the Lark sleep sensor was a great way for me to get a handle on how much sleep I was actually getting and how often I wake up through the night. And as the parent of a toddler, it was really helpful to get a handle on how little sleep I was actually getting. Sleep is essential, and with the feedback that you get from the sleep sensor (if you're disciplined about using it) you can really challenge yourself to treat your body better and get more sleep.

I am hearing impaired and I've always look out for a new and improved alarm clock. This exceeds my expectation as I love its wireless so I can put my iPad/iPhone away from my nightstand. This device gets me up on time better than other vibrating alarm clocks. I don't know if you market the deaf community, but they would appreciate LARK greatly! Thanks.

I've struggled with alarms failing to wake me up for years. No matter how loud the audio alarm, I was always jolted awake enough to shut it off and fell back asleep. I bought the Lark without expecting much better results. I was VERY wrong. The USB port for charging is a big plus- keeps me from using too many outlets- and I had no connection issues at all. From the first night I used it, I could tell this was a keeper when I woke up with the alarm in the morning. It woke me gently and without startling me. And it did again the next day. And the next. And the next. 3 weeks in and I've woken up with it every single day I've used it! The wristband took a little bit of getting used to, but it's comfortable. All in all, a well thought out system that I wouldn't hesitate to recommend.

I love this product.

Tired of always being woke up by my wife's snoozing habits, I got one of the Lark units for her to use. It works as stated and I now get that hour of sleep back everyday.

We haven't played around with the sleep data too much at this point but it seems interesting and could prove useful, I'm just pleased that mornings are quieter around the house and the grudge factor is gone. THANK YOU LARK!

My only gripe - they should make the software compatible with the older iPod Touch (Generation 2) so I don't have to buy another iPhone to start using the device for myself.

I bought a LARK Sleep Sensor over one week ago because I really like the idea of tracking my sleep. The alarm component was also desirable. Unfortunately, this is a very disappointing realization of a good idea. Consider:
1. The sleep tracking is not very accurate.
2. The bluetooth does not always work, and when it is not working, there is no way to set the alarm. This has already resulted in one nights sleep not being registered, even after spending > 45 minutes (I should have been sleeping) trying to get it to work, following the instructions... the tech support...
3. I can not access the LARK website from my iPhone, which means you can't access the online dashboard. When you log on from a computer, it does not have your sleep history, so no added value.
4. After you buy the LARK, you learn that to get more than the alarm clock and sleep tracking, you have to pay $60 for an annual subscription, which is not at all clear on the sales literature. Based on the inaccurate tracking (assuming it works every night) how can the $60 analysis be correct?
5. The warranty is only for 30 days - not a typo - only 30 days
6. The stand does not "charge your iPhone" but only has a USB port in it
In conclusion, I am taking my LARK back before the 14 day return period is over. The sleep tracking is not reliable. The basic sleep analysis is not available from an iPhone and when you log on with a computer the web site does not have your sleep data. When the bluetooth does not work, the alarm function does not work, which has already failed in the first 8 nights of use (last night). The $60 annual fee, the lack of technical support, and the 30 day warranty don't inspire any confidence. This is a product not ready for prime time. Save your $130 + $60, there must be a better product out there. I am certainly going to look for it.

I bought two of these a week ago. One for my boyfriend (since he wakes up 2 1/2 hours earlier than I do) and one for me (to track my quality of sleep and wake me up more gently). We both have followed the directions as far as charging them before the first use, and then charging them all day, and both of ours have already failed to go off in the morning. My boyfriends failed the third day, mine the fifth. Luckily it has a noise feature if you don't snooze within two minutes, but still, I'd expect the wristband to work for more than a week... Cool concept, but they're going back tonight.

First - I really love this product, and I think it was a brilliant idea, well done. I am a recently diagnosed insomniac, and I have to wear earplugs when I sleep. My girlfriend might like his silent un-alarm more than me because she isn't jolted awake by my alarm that has to be cranked up! So, from the both of us, good job.
I do have some complaints however. I understand this is a new product, and perhaps your team has not been developing for iOS very long. Number one, when you enable the alarm, and the screen dims, it is basically unreadable and glows quite bright. I would like to point out an app that I have used previously as an alarm, and the GUI is brilliant. iHome+Sleep – the GUI is beautiful, you can also choose pictures to use as the background, along with a weather display (a nice addition). The most important feature to note is how the display dims when you swipe to tell the App its Bedtime. I think the Lark App could benefit from a few user friendly +cosmetic improvements.
OK, so all that was just about the GUI, which doesn’t have anything to do with functionality, I understand this. So that is what I am going to comment on next. The fact that Lark records sleep data (at least for an insomniac like me), is extremely useful! I think this was a good use for the sensor in the Lark wrist band, a very good use. However, it does not record accurately…or at least report accurately. Let me explain – I have been using the Lark for about a week now, and like I said, our morning are much more peaceful because of it. Because of my insomnia, I very rarely get 8hrs of sleep, and most mornings I feel like I only slept a few hours. One morning in particular, I felt extremely lethargic in the morning, the most tired I have felt in a month! But the Lark did not agree. According to Lark, that was the best night’s sleep to date according to its weeks worth of data. Now, like I said, this information seems very useful, especially to someone who values a good night’s sleep as much as I do. But the information now seems invalid and un-usefull. I feel as if some of my money has gone to waste, and I spent $140 on a wrist band that vibrates to wake me up, and nothing more.

Really happy so far with the purchase. I have very little time to sleep in general and at various times find that my "sleep debt" is immensely high. I have used a ton of sleep apps and none really seem to give real value. I started using Lark a few weeks ago and although it does not have every feature I want right now, it has been great in gauging the quality of sleep I am getting. In general my sleep has been pretty poor, but last night was the first night I actually slept "well" and I do feel much more rested today. I am going to make sure to track what I do with the sleep quality. The app probably still has a ways to go with the features, but it seems like the science is there and it's actually working.