This was purchased for my husband’s day bed. He was very upset when box was delivered and proclaim that no way a good mattress could be in that box. It was a challenge for me to open the box without a box cutter or knife. I had the rolled mattress propped between my legs when I started to peel the plastic off and it started to expand and had to roll it on to the floor. Watched it expand and left it on the floor for two days before putting it on the day bed. Husband was then relived and it was comfortable.