K&H has a variety of cup/bun/bagel/UFO style heating beds listed on Chewy's now, so take a look at the bunch of them. This one looked like the fleeciest cat-sized round bed, so I went for it, but there are others that are lower, higher, bigger (if any of your cats like group cuddling), in other materials, cheaper, or more expensive.

Thank you--she's not doing any better, so this is different than her other bouts of pancreatitis and may be something different, and we'll find out the blood results tomorrow. At least the X-rays showed no masses, so that's a very good rule out. She got a shot of fluids and a pain-killer today to hopefully give her a better night. *hugs*