Slumber Pet? Sherpa crate dog beds are comfortable dog crate beds made with thick Sherpa. Each dog crate bed has bumper-style cushioning to give pets a soft and cozy spot to nap. Unique bumper-style Slumber Pet? Sherpa crate dog beds combine thick Sherpa with bumper-style cushioning. Bed dimensions are slightly larger than ProSelect? crate dimensions, so the bumpers are supported by the crate sides, softening the crate's edges and providing an inviting nestling area for dogs.