RV Mattress Sizes Guide RV Short Queen Size Mattress 75"×60" Perfect for accommodating two adults or two and three children RV Short King Size Mattress 75"×72" Nice fit for two adults and even four children. You will need a bigger camper to lodge this bed in though RV King Size Mattress 80"×72" This can be placed on a huge camper, loads of your favorite food, nice songs, and board games Please double-check the RV bed measurements when you need. Breathable Knit Cover With a very soft-to-the-touch feel and the important ability to let air flow easily, the bamboo fabric offers comfort, function and durability. This premium bamboo fiber has superior breathability and helps regulate temperature, creating a natural, more comfortable sleeping experience. The cover comes with a zipper that allows for easy removal if needed. Fiberglass-Free FR Mattress Sock We concern about your health and safety. Our flame retardant mattress socks are made of 92% cotton, 8% polyester ribbed fabric. It does not contain glass fibers and flame retardant chemicals thus no skin irritation and no breathing problems. You can rest assured that your children and family rest easy on this fiberglass-free mattress Pressure Relieving Memory Foam The top comfort layer of the memory foam mattress is made of Aerofusio memory foam, which provides 4 times better pressure relief than traditional memory foam. It supports your body in every position, providing extra cushioning and comfort for your hips, neck and shoulders. And the infusion of green tea gel maintains mattress freshness as well as mitigating temperature issues and increasing breathability Flex Support Foam Base The bottom base layer of the memory foam mattress is made of Flex Support Foam that provides the support needed to keep the spine aligned and keep the sleeper's muscles relaxed. The durable base foam adds to the structural integrity of the mattress, providing lasting support to prevent sagging or soft spots