Thanks! Fidget quilt was the name I was looking for. Thanks also for the dimensions to shoot for.
I do like the idea of wheelchair sized and will recommend that to them as it is a manageable size for all of us. I also like the suggestion of combining fabric textures. I have plenty of novelty fabrics that Gus and friends can raid - that are representative of his hobbies and interests.
I had also thought about signatures and messages being incorporated and will suggest that to Gus as well.
Positive news from earlier this morning is that he is now breathing on his own! A big first step on the long road ahead.
K