This self-warming bed is perfect for any time of the year. It is soft, fluffy and inviting and soon it will be warm! The self-warming lounge sleeper is the perfect snuggle spot for a smaller pet. The exterior of this bed is made of a durable and attractive poly/cotton and it is lined with a plush microfleece your pet will love curling up in. The overstuffed bolster surrounding the bed perfectly complements the soft, pillow-like sleeping surface. This self-warming bed has a layer of metalized insulation that radiates warmth generated from the pets own body heat and is filled with a soft, premium polyfil made from recycled plastic bottles. The bottom of the bed has a layer of stay put non-slip fabric.