●SELF-WARMING TECHNOLOGY: Self-warming material captures your pets body heat and radiates the warmth back to your pet using the same technology as “space blanket” self warming Mylar ●CAT CAVE: This self warming cat bed has high side walls that hug your cat in comfort while featuring a removable hood for privacy and security ●SELF-WARMING: No electricity required for this warming cat bed; great warming bed for small dogs too ●MACHINE WASHABLE: Cat bed features a removable cover that is completely machine washable for easy care ●SIZES: Small measures 16” in diameter; perfect for cats and toy-breed dogs. Large measures 20” in diameter; perfect for multiple cats, large cats, or small breed dogs ●BRAND YOU TRUST: Designed by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets