BODISEINTModern Soft Plush Round Pet Bed for Cats or Small Dogs, Mini Medium Sized Dog Cat Bed Self Warming Autumn Winter Indoor Snooze Sleeping Cozy Kitty Teddy Kennel (M(23.6”Dx7.9 H), Coffee)

Q: What size dog us this for?

My dog, Ruby, is 16 pounds. She is half Chihuahua and half Jack Russell. She fits I it just perfect and she loves it. If she were any bigger, she would not fit!

Q: What is the best size for an 11 pound cat?

Good question. My cat is around 10lbs. I got the medium. A small would have been fine probably. But she like the space. :-) see my review for pics. https://www.amazon.com/gp/aw/review/B07K84WXPV/R3V7BX2RI1OFTL?ref=pf_ov_at_pdctrvw_srp

Q: Would medium fit two average sized cats?

I have 2 full grown cats and ordered the Xl size. Plenty of room for them both with a bit of room to spare. Can’t imagine that the medium would be large enough for both of them. Maybe the large would have worked. My son has 1 cat and ordered the medium.

Q: Is this dog bed washable??,

I’m pretty certain it is, That was one of the requirements I have for dog/cat beds. I haven’t washed ours yet. But both cats and our poodle dog love this bed.