Lots of places to sit in the Convention Center and the vendors tent. The Quilt Museum has their own wheelchair if needed and there are some seating areas in the galleries too. I'd throw the wheelchair in though...parking might be further than you expect, but they're hoping to open up some new lots this year. The Museum is a couple of blocks from the Convention, they have a nice parking lot and there is a huge one across the street, but when I was hobbling around from my recently broken ankles, getting to and from my car was the biggest challenge.