CAN RAY MONITOR MY SLEEP? Karyna Updated October 31, 2017 21:57 Follow If you wear Ray to sleep, it can automatically track: When you fell asleep Duration of sleep Duration of light and restful sleep When you woke up Related articles DO I NEED TO PRESS A BUTTON OR TAKE ACTION TO START TRACKING MY SLEEP? WHAT TYPE OF SLEEP ACTIVITY IS BEING TRACKED? HOW DO I USE THE PULSE DETECTOR FEATURE? WHAT IS LINK? HOW DOES THE 'RING MY PHONE' FEATURE WORK? Comments 0 comments Article is closed for comments.