Comments about Product: I purchased two of these for two five month old kittens and they use them to both nap and play in. I feel a lot of thought went into the design of these. The cushions are placed in a zippered compartment at the bottom so it is impossible to knock them out. It is held open by rings, with the smallest in the upper area and largest at the bottom. I placed them in front of a window side by side. The opening is on two sides so they can either face the window or lay the other way and see what is going on in the room. I used a carribiner to secure the top to a small rope just so it would be easier to disconnect or reconnect. All seams are folded over and top stitched. I'm very pleased with the purchase and would recommend this item. I also didn't feel they were too expensive. All in all, a good value for the money.