The only way to really know how many people will attend your post-wedding brunch is to ask. By including information about the day-after celebration in your wedding invitation, and also listing it on your wedding website, you'll give guests a chance to plan ahead and coordinate their travel plans accordingly. Go ahead and include an option for brunch attendance on your reply card and you'll be able to get the most accurate response directly from your guests. If you're worried about guests not attending, here are a few things to think about that may encourage everyone to stop by.
Don't make it too early.
Sure, some guests want to get up and at 'em early, but you may want to think about the majority when planning the timing. To be on the safe side, consider a 10 a.m. start time for brunch, which will give everyone who stayed up too late the night before a chance to sleep in. If you know your crowd is full of early risers, a 9:00 a.m. or 9:30 a.m. start time is fine, but you may want to keep it casual and give guests the option to arrive later if they need a little extra time.
Keep it flexible.
It's a good idea to let guests know that brunch is casual and flexible. Rather than a specified sit-down time, a flexible schedule allows guests to come and go as they please. Since the day after the wedding is usually a travel day for many guests, it's usually helpful for them to keep it low-key.
Make it convenient.
Most day-after wedding brunches are hosted at a hotel where many guests are staying, or at a home near the wedding location. Most guests will want to stop by and say their goodbyes, and a convenient location means more guests may have the opportunity to attend.
Keep it short.
A wedding brunch should be two to three hours maximum. It's a chance for guests to high five, laugh about the night's shenanigans, and get on the road back home. Two hours should be plenty of time for that.