Internet shuts down just for an hour or two

I have an iPhone 13 Pro. I keep it in sleep mode from 11 to 8am. In the morning phone works fine for maybe a half an hour then my phone loses Internet connection for an hour or two, then it’s back on for the rest of the day and evening. It doesn’t matter where in the house, I’ve gone online and gone through most of the suggestions on how to make sure that everything is turned on that should be and I have not figured out why this is happening just in the morning for an hour or two. I would appreciate any ideas why this is happening.