This is the only bed I buy for my (dog). We've tried other beds, but he generally ignored them. He's had several beds over the years, and he goes right into them each and every time. He loves to burrow, so it's perfect for him. And, he'll sometimes just sleep on top of it when he wants to stay a little cooler. My dog is 28 pounds, and the size Large works great for him. We ordered a Small once, but it was way to little.