My husband has a difficult time sleeping on plush mattresses, so our recently purchased mattress was sent to guest room and we found this Serta Perfect Sleeper Trelleburg Cushion Firm King to replace it. It is definitely on the "firm" side and will take some adjusting for me, but it is surprisingly comfortable. With the addition of a topper for me, this may allow us to sleep together again !! The only negative comment is the handles for moving the mattress are sown in to the seams of the mattress edges at top and bottom. Trying to move this heavy, king size mattress to put on a new bed skirt and the handles ripped from the top seam, exposing the foam, etc. Am addressing this with the store where I purchased. There may need to be some consideration on placement and how these are affixed to these heavier mattresses. They also need to add to the head and foot edges of the mattress--you move these mattress standing on their sides and there is nothing to hang on to!!