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 tracking 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 babies from 0 to 18 months or 2.5 to 13.6kg. Dream SockTM is the first and only medically approved smart baby monitor with real-time readings and health alerts for healthy babies from 0 to 18 months or 2.5 to 13.6kg. Track real-time health readings. With the Owlet Dream app, you can track your baby's heart rate, oxygen saturation, waking and sleep trends from anywhere and in real time. Know when you are needed. When health readings fall outside the preset ranges, you'll be notified in real time with light and sound signals on the included base station and in-app notifications. View health and sleep trends. View your baby's heart rate and oxygen saturation history in the Owlet Dream app to gain valuable insights into your baby's health trends over time. Dream Sock has been clinically tested for SpO2 accuracy in all skin types in both motion and resting states and has demonstrated +/- 3% accuracy of gold standard arterial blood gas measurements.