Pocket-Lint: No one likes the amount of time us humans have to sleep. Imagine what you could do with that time if you didn't have your eyes shut and your head on a pillow. But of course, without sleep we'd all be in big trouble, and modern life doesn't make it easy to get good quality kip.
Cnet: The Renew SleepClock monitors your sleeping habits, presents data in a easy-to-read app, and has decent sound quality.