it was covered because, I felt they would likely to get actually comfy and take a nap. Before this I had put a cat bed in the cage and they didnt never stay in it for very long except potty I had also put snaps on to make it easy to get the pad out. They love it. Used mother's sewing machine to sew all the parts then i had sewed it, to put it together.
I made just like a regular cuddle just the the bottom I had cut twice to make a top. And I also put snaps on because I thought it would be easier to get the pad in and out. The removable pad was mad of batting like for a ironing board pad and towel I love it.
Oh I've made things like this! I cover almost all my hideys, the pigs actually sit in them and have naps! They only have one thing that isn't covered. My newest creation is over a foot deep, nice and snuggly.