Withings Aura
TECH SPECS 
DescriptionWithings Aura is a well thought-out active system designed to both monitor and improve sleep quality through the combined use of a contact-free Sleep Sensor tucked under the mattress, an active light and sound Bedside Device, and a smartphone app.
BatteriesRechargeable via USB
ConnectivityWiFi, Bluetooth
DisplaySmart time display (smoothly disappears during sleep)
Brightness adapts to user settings and ambient light levels
Other
METRICS 
Sleep durationYes
Sleep stageslight, deep, and REM sleep
Sleep interruptionsYes
Time to fall asleepYes
Heart rateYes
Room environmenttemperature, light, sound level
Smart alarmYes
OtherSound and music programs
Wake-up program: Progressive blue light sequence emulates sunrise and suppresses melatonin
Fall asleep program: Progressive red light sequence emulates sunset and is free of melatonin-inhibitors
LINKS 
Affiliate link*Amazon | Withings
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