Good Dog Sleeper Sofa. Top rated quality hypoallergenic high density egg-crate foam pad provides the support and relieves the pain of arthritis. The foam is high quality to help prevent flattening overtime. The removable cover contains a strong zipper and extra stitching to prolong the life of the pet bed. The cover includes an antiskid bottom and is machine washable. Dense high quality memory foam pad Antiskid bottom Thick bolster filled with shredded memory foam Can be folded into a chaise or unfolded into a bed Removable cover is machine washable Sizes (Approximate): Folded: 55cm L x 71cm W x 37cm H (21" Length x 28" Width x 14.5" Height) Unfolded: 107cm L x 71cm W x 26cm H (42" Length x 28" Width x 10" Height)