This is an XL Twin (38" x 80") brand new mattress that was a floor sample on our floor. Excellent condition. It is medium firm with Cooling, phase Change Material & Graphene Memory Foam. Shipping in Cash or free pick up. This is a very high end mattress. See the picture for details about the various layers. We have several others available in XL Twin also so please see our other auctions if this doesn't fit your needs.