Here is a minor tip.
If a blackout is possible while you are sleeping, then get the extra bedding out now so that you can just reach over and drag some extra blankets or comforter over you and deal with it in the morning.
My husband ‘runs hot’ and even in Winter I usually don’t need more than a bedsheet; but there’s a comforter, in case temps really tank.
Good call. We’re in Maryland and my 91-yo mother is a few miles away in a senior independent living facility. Went over today to make sure she was squared away including that she had extra blankets nearby her in case power went out and all she had to do was reach over and grab a few.