Aspen Pet Self-Warming Bed (19", Assorted) – A round self-heating pet bed that uses a reflective layer to radiate pets’ body heat back to them. It’s 19 inches in diameter, perfect for cats or small dogs, with a plush interior and bolstered edge for snuggling. No electricity is required – the Mylar lining provides gentle warmth. It’s great for cooler nights or drafty homes, giving your pet a cozy, warm spot to sleep.