Another type of popular dog bed found in pet supplies is the round bed. This is a perfect bed for dogs that like to cuddle up when they sleep and for cats that love to sleep with their legs thrown apart. This dog bed is available in three sizes for dogs and they are: ? Medium: 36 inches - The medium dog bed can take weights of up to 50lbs. ? Large: 42 inches - The large dog bed can take weights of up to 80lbs. ? Extra Large: 52 inches - The extra large dog bed can take weights of up to 140lbs. You can also get these beds in different combinations of colour and design like blue polyester suede that will look neat and even go with the overall d?cor of your home.