VIP Team leader Dr. Salma Patel gives the inside scoop! Wearables and smart sleep devices—such as watches, rings, mats, and smart beds—track things like sleep time, patterns, movement, heart rate, and sometimes oxygen levels. They can help raise awareness of sleep habits and encourage healthier routines, but their accuracy is limited since they rely on algorithms rather than medical testing. While some devices may flag signs such as oxygen drops, snoring, or restlessness, only a medical sleep study can confirm a disorder.