Full size BeautyRest innerspring pillow top mattress, catalog number BR 800 PT, medium firm. Super comfortable, and I have a lot of spine problems and have slept comfortably and very well on it for the past 3 years. Always used with a mattress cover except for taking the photos. Happy to give the mattress cover with it too. Also selling full size metal bed frame, that is easy and tool-free assembly. $200 all together, mattress $175 alone and bed frame $75 alone, all OBO. Pick up weekend June 22-23.