High precision, non-contact sleep monitoring and analysis ? validated in a sleep laboratory Innovative networking between smartphone and sleep sensor with Bluetooth low energy technology Discreet, unnoticeable: placed under the mattress For measuring, analysing and improving personal sleeping habits Heart rate and respiratory rate recording and movement display with individual evaluation Precise sleep phase recording Includes sleep phase hypnogram Sleep score display:simple evaluation of your sleep Graphical display (day/week/month) Functions to detect interruptions in your breathing Sleep diary FreshWake function to help you wake up well-rested in the appropriate sleep phase Use and recording via beurer SleepExpert app for free Energy-saving Bluetooth low energy technology Includes power unit 3 year guarantee