https://www.withings.com/us/en/sleep

Price: $99.95

Description:

Withings Sleep offers sleep cycles analysis (deep, light and REM), heart rate tracking and snore detection. Easy one-time setup and automatic sync to the Health Mate app via Wi-Fi. Also features IFTTT integration for scenarios such as dimming lights when you go to bed, or turning up your thermostat when you get up.

The SELF Institute