If you go camping, almost everyone uses air mattresses, except if you really wanna go ultralight. They can be quite comfy and don’t deflate if you put the cap back on

The feeling of resting on a slowly deflating air mattress before you pack it up is amazing. I remember one time, my sister (now wife) and I went on a camping trip with an inflatable mattress, and we both just slooowly let it deflate while we laid on it before we packed it up. Good times!