Looked at every hybrid available - read every review. Very pleased with this choice. Mattress is for a twin in my 5-year old granddaughter's room, but would be very comfortable for any adult. We gave it 48 hours to poof up and it was great. No feeling of the springs at all.  We had the box for a couple of days waiting for the bed to arrive - didn't realize that we should have unboxed it within 72 hours of receipt. Didn't seem to hurt anything. Photo is after one day, it got poofier. This was a great purchase.