As you move differently in bed during the different phases of sleep, Sleep Cycle uses the accelerometer in your iPhone to monitor your movement to determine which sleep phase you are in. Come morning and it plots out a graph of your nocturnal activity. Here’s mine from the last couple of nights:

Sleep statistics for 30 – 31 Jan
Went to bed / woke up: 01:18 / 08:27 | Total time: 7h 08m

Sleep statistics for 31 – 01 Feb
Went to bed / woke up: 23:21 / 06:30 | Total time: 7h 08m

Can you guess when I woke to tend to our son? Now I *know* when I woke at night…

This is the first post I have managed to type out in months, besides the regular amalgamations of various Twitterspheric streaming that this site has become. It must be because I’ve just read something that pushes my psychology / computer science / internet geek buttons just enough to warrant a little more rambling than the usual delicious tag or tweet. Jakob Nielson has published an article that cites the classic seven plus or minus two of short-term memory capacity (i.e. executive function) in the context of Website User Experience. Ooooh.

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