If you app is showing an old setting after you try to change it, follow these steps to resolve the issue.
You will need to have wifi, cellular, or bluetooth enabled on your phone in order to communicate with your bed.
See this article for help connecting to your bed: "I am not able to connect to my bed."
Go into either your "Tonight" or "Tomorrow" card to modify your settings.
Rebooting is an effective way to refresh settings that have become out of sync.
Restart your phone, and reboot your bed by unplugging it, waiting one minute, and plugging it back in.