I live in a 1 bedroom apt in FL, where friends frequent often. When someone is in town, I rearrange my modular couch into a bed  place this on top for extra sleeping space. It is comfortable  doesn’t make sleeping too hot. When there are no guests, I put it back on my bed. The 2.5” adds a lot of cushion. It’s a tight squeeze when putting the fitted sheet on, but it still works.