Hey SKI56,
Sorry to hear about this but thanks for reaching out to the Google Nest Community. I want to check on this further.
A few questions — when did this start happening? What type of Nest thermostat do you have? Also, have you checked on your schedules and ensured that nothing is set on that specific time? Take a look at this link for more information about your Nest thermostat schedules: https://bit.ly/34fWs4G
Keep me posted.
Best,
Melba
