Our wedding is on a Saturday and we have our block from Thursday until Sunday. We have a lot of people coming in from out of town and a large welcome/rehearsal dinner on Friday. Most people are staying at least 2 nights. Usually the hotel will give you a date range and you don’t have to choose one date only.
Our wedding is a Saturday and our hotel block is Thursday to Sunday. I figured really only my parents would be coming in Thursday night but we have a good number of guests coming in Thursday night actually. We live in Nashville so they're making more of a vacation out of it.
I did the day before the wedding and the day of. I did make sure to talk to hotels about if people didn’t book both days and there was no issues. I wanted to check that I wouldn’t be on the hook if the rooms weren’t filled the day before