Therm-a-Rest Dreamtime Self-Inflating Luxury Foam Camping Mattress Self-inflating mattress, foam pillow top and plush fleece cover Foam core offers premium stability, warmth and support Compressible foam core expands to inflate; add just a few breaths for your desired firmness Protective cover is removable/washable and interior mattress can be used separately-Mattress core is 2.5 inch thick with an R-Value of 6.0 Integrated straps mate with another dreamtime mattress for double-wide luxury