Strong enough to hold over 150 lbs. The Self Warming Pet Cot Cover is also available for sale separately if you have already purchased the original K&H Pet Cot. For everyday cleaning, wipe clean with a damp cloth. For periodic cleaning, remove the cover and machine wash it on the gentle cycle with cold water. Line dry only. Item weight 7.5 lbs Self-warming material returns a pet’s body heat Holds up to 150 lbs.