Wipe clean with a damp cloth. DO NOT place this item in the washing machine or dryer. After assembling the Pet Cot, try placing some heavier items on it, but do not exceed the weight limit of 150 lbs. This will even out the Pet Cot and all 4 legs will rest on the floor or ground nicely. Coolin’ Pet Pad technology keeps dogs cool Strength-Tested, 150 lb. capacity Sleep surface 30″ x 42″ Rubber Feet–Non-skid No toxic gels and BPA free.