we are sorry that you are having problems with your sleep tracker.

below are some steps to see if you can get yourself up and running.

is your device charged?
The quickest check is to remove your removable cover connected to your sheet and put the cover back on the circle should go green.
if the circle is not green charge your device the battery is dead

Is your phone OS up to date?
the quickest way to do this is navigate to your settings app, find your search bar and type update, you should then see a option to check for updates.
its highly important to keep your phone up to date - not old for your phone to run at its optimum but also many security features are added in keeping your phone safe and secure

Still have the problem please get in touch with us if you can take some photos and screen shot in preparation it will help us resolve your problem promptly.