Feature Request - Sleep Timer option

[mARTin-B78]

Hello,
I love to have a Sleep timer for my Aircon in the Bedroom. So if it is too hot in summer or to cold in winter I like to pick a Duration (15, 30, 45, 60, 120 Min) and after that time the Aircondition turns itself off.
There are some Automations where this can be done in Homeassistant but nothing is so nicely added to the user interface.
So having this inside of the Better Thermostat GUI would be sweet.