This is a custom mattress made for a Casita Travel Trailer. It was in a 17 ft Casita Spirit Deluxe trailer. It has three flat sides and one side with two curves to fit the coutour of the Casita. May fit other travel trailers as well. It measures 72" x 53" x 8" deep. It is an incredibly comfortable mattress, you can count on getting a good night's sleep with it. New from the factory, it runs $875 plus tax and $375 shipping to NM, so it would cost around $1300 delivered in NM. You can see it at:
I will deliver anywhere in or near Santa Fe.