Additional Mattres for over couch or dinette

A 1.5 inch memory foam twin size works too. Once it is rolled up it fits on end into a vertical cupboard.

air mattress different sizes blow up quick with pump, vacuum cleaner, etc. When done deflate fold it store it they take less space when storing. We use one on the jack knife sofa works great.

Egg crate foam does a good job. Any foam mat will work.

Get a fold up mat... usually folds in four sections... If it's too long, just have two sections folded at the head end...easy to wipe clean.
I was in IKEA yesterday and they had them in the clearance aisle.

we put a egg crate foam pad on dinette than a single bed sheet over that holds it all together works well