Sleep Cycle aware Alarm Clock App using iPhone Accelerometer
lexwarelabs.com
lexwarelabs.com
One thing I've noticed is that in your sleep, you're sometimes rolling over while being "half awake": you wouldn't remember it if you would fall back asleep, but if you're inside the specific timeframe you've set your alarm to, this application will wake you up, and you indeed do feel more fresh than coming out of a deep sleep.
And the charts are nice too.
The app doesn't work if you lock the phone, the app doesn't support the iPod Touch, the phone needs to be connected to power because there's no concept of different (hardware) sleep states.
And of course, the app would not wake you up if you were to get a phone call or SMS during the night.
Most of these limitations would go away on open hardware with an open SDK.
Also, I think putting my iPhone at the corner of my bed is a little risky. When sleepily reaching for your phone in the corner of the bed it's easy to drop it, scratch it against the wall, etc. Even when you're generally a careful person; it's going to wake you up 300 days a year, and it has to go wrong only once.
I'm hoping sleepmate does a better job.
Can you show the reviews URL for the rest of us?
Wouldn't two people in the same bed be pretty likely to not have synchronized sleep cycles? Or would they be synchronized? Anyone know about this?
"How well does Sleep Cycle work with 2 people sharing a bed?
Our experience is that it works very well. Normally your body will "block" the movement of the other person and the iPhone will not detect that movement. You can test this yourself by using the test function in Sleep Cycle."
I wonder if you could use changes in body temperature instead? (Obviously not using an iPhone though.)