dataguy

WakeMate lets you wake up at the optimal time in your sleep cycle (https://secure.wakemate.com/).

Seems like an odd question, but as I am just about to buy one of these things: Do they really work? I mean: Yes, I know the theory behind it, but: Is anyone here who uses this thing (or something similar) and is really convinced of it? And how does it feel waking up without these things if you got used to using it?