Okay, I'll do that.
Thanks, ladies. :D
I guess the reason I was concerned about the bump was because I crocheted some circular coasters and felted them recently. They also had a slight hole in the circle, smaller than the one in my Kitty Pi bed
, and I did weave those holes closed with extra yarn and a crochet hook. After felting, there was a thick bump in the center. They work fine for heavy coffee mugs, which is why I wanted them, but I'd still like to have avoided the bump. :|