I bought this mattress in the winter of 2023. It is now August 2024 and there are noticeable dips in the mattress where we lie and essentially a hill in the middle of the bed. We are average sized people. I’m 5’4 135 lbs and husband is 5’10 around 160. Some folks like the bed to form around them, so if you do, this is great. I myself prefer a mattress that retains its shape.