I was kind of curious about this, too. If I wake up in the middle of the night to deal with a sick toddler, will WakeMate know I'm fully awake based on the fact that I'm walking around? I suppose it would be much like waking up to go to the bathroom, for those without young kids.

Obviously the alarm's only going to help if I set it for a window I know is before the kids wake up. Otherwise it's their voices that'll wake me. On work days, that would suit my usual routine. On the weekend, I'm not sure it would be worth it to forego a potential extra hour of sleep by setting the WakeMate alarm.

But it's still tempting, just to chart my sleep during the week and be able to measure the effects of caffeine, exercise, etc. I'll probably wait until there are reviews and testimonials from people who have used it for a few months.

I was tempted a couple years ago by a much more expensive product whose name I can't recall. I think it was $300-400. In contrast, it's pretty easy to take a chance on $60. Cool product, guys. I hope you're wildly successful.