The busy night

Two things I love are sleeping and data collection. Now, thanks to a new iPhone app, I can do both at once.

Sleep Cycle uses the accelerometer in the iPhone to record vibrations in your mattress caused by you moving in the night. In this way it acts as an actigraph, keeping a record of your body movement, which in this context reflects how deeply you are asleep.

sleepgraph.jpgHere is the data from my last night’s kip. As you can see I show a fairly typical pattern: sleeping deeper in the first half of the night, compared to the second half, and having alternating patterns of deep and light sleep (although I seem to cycle through the stages of sleep every hour, rather than the typically quoted every one and a half hours).

The app also has an alarm which promises to wake you up during a lighter stage of sleep, so saving you the unpleasant sensation of being woken by your alarm from deep sleep. I’ve yet to try this out but it sounds like a good thing, as long as avoiding the jarring sensation is worth forgoing the extra minutes shut-eye!

Link: to the Sleepcycle app

8 thoughts on “The busy night”

  1. Noteworthy too that if you’re woken up during REM sleep you’re likely to report having been dreaming- so using the app might make you more likely to recall your dreams…
    I think rectally dosed diazepam would likely interfere though, so maybe that could be used as a ‘dream control’ feature, easily turn-off-and-on-able.

  2. As if, im not sure if i could sleep with what looks like a caving light on me head. This is probably just as bad as having your phone on next to you while you sleep but i also feel a little worried that that little device is sending wireless information from right next to your brain!
    But apart from those little niggles i would deffo buy one if i hadn’t got me ipone to do the job for me.

  3. Dear Mr. MindHack,

    I have been reading you with pleasure for a few years now – indeed, you have helped me drag myself through the unfortunate tedium of my Research Neuropsychology masters.

    I am very interested as to your enlightened perspective on the Sleep App. Google is laden with marketing or just lay perspectives on it, but I think your readers (and of course myself) would be very keen to hear what you make of it!

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