Google Nest Community

Every once in awhile the heat on all three of my Nest thermostats will turn itself on there's nothing in the schedule I have made sure that there's nothing in scheduling and that all the thermostats are set to the lowest temperature yet I woke up thi...

I have nothing in my schedule it's completely blank yet I often wake up to my heat running on days when it shouldn't be to a temperature of 68° f. I have no idea what to do I've erased everything from the schedule and it still happens.