@Tiffany234 It's less confusing to think of the dates as nights rather than days. So if you can host on Sunday night, and it works for you for those guests to check in during the day on Sunday, don't block the Sunday. But do make sure the check-out Sunday guests are aware that they need to check out on time so you have time to turn it over for the following guests, and don't let the Sunday night guests try to push your check-in time so you're scrambling to get the cleaning done.