WHAT TYPE OF SLEEP ACTIVITY IS BEING TRACKED? Karyna Updated November 03, 2017 16:36 Follow If you wear Swarovski Activity Crystal 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 HOW IS MY PERSONAL DATA BEING USED? MY SLEEP DATA DOES NOT SEEM TO BE TRACKING IN THE APP. HOW CAN I FIX THAT? WHAT CAN I DO WITH SOCIAL FEATURES? Comments 0 comments Please sign in to leave a comment.