$199 mybasis.com

This health tracker watch measures heart rate, perspiration, skin temperature and motion – giving insight into your sleep, (iOS and Android). It tracks sleep in detail, using an optical heart-rate sensor and 3-D accelerometer, turning on when you nod off. It claims to be the only band capable of detecting REM sleep (our dream state) as well as the depth of your slumber, tossing and turning, and any interruptions. Each morning it gives you a sleep score and graphs of your night’s sleep.

GARMIN VIVOFIT