Pet beds are often purchased for dogs and cats but pet owners don't always realize that all animals like to sleep in a bed. Small animals like rabbits and guinea pigs especially enjoy a pet bed because it allows them to sleep on soft ground rather than the bars. This Woven Grass Pet Bed by Peter's is great because your pet can munch on the grass while resting as well which is one advantage of buying a pet bed made of grass. $10. BUY.