"The PETKIT Four Season Deep Sleep Bed is uniquely designed to provide maximum comfort for your pets!" The first side is made out of bamboo charcoal memory foam, which provides consistent heat dissipation while having a porous surface texture; this is the most flexible option! When your pets want to relax in peace, the second option has a spongy and smooth wave texture that relieves pressure throughout the body. Benefits and Features: High-quality materials Unique design allows heat dissipation and provides easy ventilation to cool your pets down Provides easy relaxation thanks to the spongy and smooth wave textures that relieve your pets' body Specifications: 67 x 51 x 12.5cm PETKIT Four Season Deep Sleep Bed M is a smooth pet bed that will keep your pet comfortable all year round. The dog or cat bed is uniquely designed to provide maximum comfort, made out of bamboo charcoal memory foam. The pet bed has two sides,  the first side dissipates heat and provides a flexible surface texture while the second side has a spongy and smooth wave texture that relieves pressure throughout the body.