This mattress is both firm and comfortable. I previous had the Pressure Relief Euro Top Extra Firm Hybrid Mattress and found that it was too firm and uncomfortable. I replaced it with this mattress and I've been pleased. My only complaints are that the edges of the mattress are too soft -- the mattress collapses when I sit on the edge. The second is that the mattress doesn't have a lot of structure so I found it difficult to rotate. I flipped the mattress off my bed recently to install a bed skirt and the mattress had a hard time staying upright by itself. This is probably a function of being designed to be rolled up and shipped. If this mattress had stronger edges, and handles on the sides for easier rotating, it would be perfect.