Found this website selling very cool mattresses. Anyone tried them?
"very cool" = connected to a smartphone, collecting data about your sleep, adjustable by clicking a button
No, but I've had some decent results with Sleepbot, which is much cheaper (free) if you have a smartphone already. Probably doesn't have nearly as good measurements as the mattress, and obviously doesn't make it adjustable, but it does seem to wake you up at a good time if you turn the accelerometer and microphone sensors on. (My smartphone broke, so as yet I haven't collected real empirical data on how well it works)
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