The intelligent Owlet Dream SockTM baby monitor offers parents ultimate peace of mind. The medically proven system is worn comfortably on the foot and allows real-time monitoring of heart rate, oxygen saturation, sleep behaviour and other parameters. Advanced technology provides clinically proven medical accuracy, and the connected Owlet Dream app sends real-time readings directly to your mobile device and a nearby base station - both of which notify the user when your baby needs your immediate attention. Dream Sock offers the perfect combination of technology and safety - for ultimate peace of mind. Dream Sock is designed for use with healthy infants from 0 to 18 months or 2.5 to 13.6kg.