This may be lengthy but I take my mattresses very seriously. I have always used soft mattresses and pillow tops. After having back procedures, my back was always hurting when I got up. Someone convicted me that I needed a firm bed. After searching and getting opinions, my friends suggested I purchase this firm mattress. The first night I slept on it , I woke up with slight back pain. After a week of sleeping on it I have been waking up with no back pain. The mattress really supports my back. I’m sleeping more comfortable and it is great! When I opened the mattress I let it air out for about 1-2 nights because it came sealed in a bag and the mattress needed to settle. I recommend this mattress to anyone who needs back support when sleeping!