What a comfortable mattress! This is medium firm and it’s the perfect level of firmness without being too hard and uncomfortable. We haven’t had a gel memory foam mattress before so this was a great entry into that type of mattress. The top layer is soft without feeling like you’re sinking in too far. The height is good enough to use without a box spring so if you have a platform bed, this won’t be too low to the ground. I sometimes sleep on the side and some firm mattresses lead to shoulder pain because they are too hard, but that’s not the case with this mattress. Really like this mattress!