The Sense sleep tracking ball is nothing but a lovely alarm clock

I shall sleep for science!
Such was my proclamation and enthusiasm when I was pitched the idea of reviewing a sleep-monitoring gadget. Of all the activity trackers out there, surely the best kind is the one that doesn’t require any activity of you at all. And among them, the $129 Sense sleep tracker is rather unique in not requiring the user to wear anything extra while in bed. This system works with just a cute little sphere, barely larger than a tennis ball, positioned next to my be