Milliard Premium Orthopedic Memory Foam Dog Bed and Anti-Microbial Waterproof Non-Slip Cover COMFORT - The Milliard 4" Dog Bed offers the perfect combination of support and luxe comfort by combining a sturdy foam base with a luxe memory foam layer. QUALITY - Made from durable materials and superior workmanship for a longer lasting bed. CONVENIENCE - The washable cover zips off and goes in the wahsing machine for easy care. SAFETY - The rubber grips on the underside of the cover are non-slip, and all our foam is certified by CertiPUR-US to contain only safe and chemical-free materials. SIZE - The small dog bed measures 34in.x22in.x4in.