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. FEATURES: Nothing to wear- Easy one-time setup under the mattress, compatible with most mattresses Advanced sleep tracking- Get an in-depth analysis of your night with sleep cycles, continuous heart rate & snore detection. Know how restorative your sleep was with the Sleep Score Home Automation- Control lights, temperature, and other smart home-enabled devices just by getting into and out of bed Wake to immediate in-app results- Find all results in the free Health Mate app (iOS & Android(TM)) upon waking via automatic Wi-Fi sync Shareable Sleep Diary- Make a medically-informed decision on your sleep by sharing an automatically-generated sleep diary with your doctor WHAT'S INCLUDED: Sleep tracker USB Power Adapter Quick installation guide (English, French, German, Italian, Spanish) WARRANTY: 2 Years