I forgot to activate the sleep mode, can I add my sleep data manually ? August 07, 2015 12:12 Updated Yes, you can add your sleep data manually : Launch ZeCircle Application. Tap on the violet area Click on "Add sleep" Related articles How can I set up my ZeCircle with the computer software ? Notifications are not working. Can I wear ZeCircle while swimming / showering? How to receive notification on ZeFit³ HR? 5. How to sync ZeCircle’s data (with software or ZeCircle App)?