Pampering your pet just became easier. Simply slide the Universal Pet Bed Warmer into your pet's existing bed to add warmth and comfort. Warmer heats to your pets natural body temperature. Warmer heats to a maximum of 102 degrees to prevent over heating or panting from your pet. Plus, our warmer can provide special relief for older pets with aching joints. We uniquely combine a padded layer, controlled therapeutic heat and the Pro-Flex(TM) safety layer, which prevents bunching and adds extra comfort within your pet's bed. Easy to clean vinyl cover with padded layer for extra comfort. Year-round, you'll find it's great for all dogs and cats.