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.Material: High-quality sherpa. Size: Beds are measured from outside bumper to outside bumper X-Small bed measures 17 3/4 " x 11 3/4 " -- Fits crates 18" x 12" Small bed measures 23 3/4 " x 16 3/4 " -- Fits crates 24" x 17" Medium bed measures 29 3/4 " x 18 3/4 " -- Fits crates 30" x 19" Med/Large bed measures 35 3/4 " x 22 3/4 " -- Fits crates 36" x 23" Large bed measures 41 3/4 " x 27 3/4 " -- Fits crates 42" x 28" X-Large bed measures 47 3/4 " x 29 3/4 " -- Fits crates 48" x 30"