One thing to bear in mind, these quilts will be washed and dried by the caretakers. I do a lot of these and they usually insist on machine sewn bindings, nothing that can come loose in the quilting and nothing that requires extra care. I use a tighter stitch with a 1/4"+ seam to give it better strength. I have switched to the bindings you buy by the yard as they seem stronger than some of our thin, but expensive fabric bindings. Bright colors for dementia patients. Also, will they be using wheel chairs to get around? I make mostly lap quilts for them 50x70 seems to work for them sitting watching TV or on their bed as an additional cover. 40x50 for my wheelchair people.