It’s also important to get to know your sleep cycle. There are sleep tracking apps and wearables that can help you keep track of your biometrics during your sleep cycle. Wearable technology like SKIIN can help you track your heart rate, breathing, movement and temperature while you sleep. This data will tell you how much time you’re in the various stages of sleep (ie. light sleep, deep sleep and REM), and how much time you spend sleeping on your back, front and side.