Purchased this matress because my husband moved to the guest room after months of complaining about our mattress, he called it the death trap. Set it up yesterday morning by myself. It took about four hours to expand enough to make the bed. I am trying to get used to the firmness seeing I was sleeping in a marshmallow previously however I did not wake with any aches or pains.  My husband said it was wonderful and he’s quite happy with our purchase.