Thanks for the thought, but it won't help for brain damage. For awhile I was doing a new air/camping mattress every year. Oddly my back like the cheap ones until manufacturing was moved to china and they started leaking early. I've been on foam mattresses for awhile. I've even used couch pillows (cleaned by harsh chemicals). My sheets have been rotated out through normal use throughout the years. I've never had anything big and fluffy as a top cover as those are a pain to wash correctly. When I do cleaning, I tend to get a little excited by hot water and harsh chemicals. I have my regular spring mattress on their right now, covered with a giant allergy sock, and the upper part of that is covered with a dead air mattress I cut up, which is easy to vacuum off and prevents body moisture from sinking in.