The Cozyway RV Bunk Mattress is built for the specific geometry of RV bunks - including a 21" right corner angle to fit snug against posts and frame supports without gaps or overhanging edges. At 73" x 50" and 4" thick, it gives you the surface area and cushioning to sleep comfortably on the road. The Comfort Core foam construction is designed to breathe, balancing support and ventilation so you're not sleeping hot. The high-resiliency foam holds its shape over extended use rather than breaking down after a few seasons of regular camping. The foam is CertiPUR-US certified, meaning it's been independently tested and formed without ozone depleters, PBDEs, TDCPP, or TCEP flame retardants, mercury, lead and other heavy metals, formaldehyde, or phthalates. Low VOC emissions meet indoor air quality standards - a meaningful detail in the close quarters of an RV bunk. Ships compressed in a box, making it easy to maneuver through narrow RV doorways and into tight bunk spaces.• 73" x 50" bunk size with a 21" right corner angle• 4" thick Comfort Core foam construction• CertiPUR-US certified no ozone depleters, heavy metals, or formaldehyde• Low VOC emissions for indoor air quality• Compressed mattress-in-a-box for easy RV delivery CertiPUR-US certified foam, no heavy metals or formaldehyde High-resiliency foam holds its shape through extended use Ships compressed in a box for easy RV delivery | Independent Furniture Supply Cozyway RV Bunk Mattress with Right Corner Angle, 73 x 50 in 4 in | Mattress in a box