We got this mattress for our camper queen size bed. We use a hybrid mattress on our household bed. This gel memory foam mattress stays cool however it is not as comfortable for my back as the hybrid that we have in the house. It is great for out in the camper but the four stars for me are because it’s not as comfortable to sleep on as other mattresses I have used. ￼￼I have a hard time with back issues and sleeping and would not be able to use this mattress as my primary mattress because it just doesn’t have the back support I need. Now my husband said it was great for him. He had 
no issues with it at all. Mattress shipped very fast. Box was in perfect condition. We did let it air or blow up for 72 hours before sleeping on it to make sure it got to its max inflation, if that is what you would call it.