After reading your responses, I decided not to spend a lot until I saw if they even liked a bed. I checked at the Pet Supplies Plus, they were on sale for $40-60. Then the owner told me he put out a whole box of beds that just went on sale for $25! I brought one home. It's fleecy on one side, 29" x 40".

At first Star bit the corners to find the squeaker (wow mom, a giant squeaky toy!). Sherman dove in and buried his face in it, rolled over for a belly rub. Then Star laid on the floor, but put her toys on top of it & played with them. Later, she climbed on behind them:

When they both went outside to potty, Sherman dashed back in first, the little sneak! "I"ll pretend I'm sleeping - don't bug me!"


So the bed looks like a hit so far. I think eventually, a firmer bed would be nice, but this is a good start.
I'm going to bookmark that Drs. Foster & Smith site - I was surprised how low the prices were. They have really nice outdoor beds too. I may need a couple of those when we move. Thanks again!