Existing Simba Sleep app users are kindly asked to ensure that they delete the old version and download the latest version of the Simba Sleep Coach & Tracker from the App store https://apps.apple.com/gb/app/simba-sleep/id1445201736and set up a new account. If you have given us permission to contact you previously, you should have received a Newsletter from us advising you that you are no longer able to log into your old account.