I had one before that was smaller but he's 20 lbs now and longer so he needed a bigger bed. When I fly with Petty I roll it up like a yoga mat and attach it to my bag and then he has a bed on the plane. I just unroll it on the floor and he lays on it with one of his toys and he's good. When I get to my destination he has his bed to sleep on too. This is one of three beds but it works so well for travel. He picks his toys, his bed and everything. That's how I judge things for him is by how much he likes it.