Terrible mattress! The 8” mattress puffs up to 6” at the most and it was hard as a rock. After opening the mattress I gave it 3 days to reinflate but it didn’t get any bigger after 12 hours. It looked to me as though the middle section did not open up and it stayed hard. I called Wayfair who were very nice and ordered me a new one but the same thing happened. Defective or deceptive marketing, either way it’s a not a good mattress.