For the longest time, I couldn't get Avery to get in a bed at all. For Christmas I received a really nice minky blanket and Avery took a liking to it. So, with some research, I found CuddlePup on Etsy. She makes wonderfully handmade beds from minky fabric specifically designed for small dogs. I've included a picture with Avery in his... he loves it so much that it even comes in the bed with us.
Her link is:
CuddlePup by CuddlePupPetbeds on Etsy