This Serta pillowtop mattress was the perfect combination of soft yet supportive. I'm a back sleeper and my body felt cradled all night, with no pain or discomfort in the morning. My husband sleeps primarily on his stomach or side, and he also slept comfortably on this mattress. If you are looking for a more firm mattress, this isn't the one for you. It's very plush and you will feel and see your body sink into the pillow top addition. With that being said, I felt very little transference of motion when sleeping next to my partner. The mattress itself appears well made, roughly 14 inches thick and seems like it will hold up well over the years. As far as the material, it is plush and breathable and didn't leave me hot and uncomfortable during the night. Sleep is so important and if you are looking for a soft, comfortable mattress this is definitely a great pick!