Thin Reversible Waterproof Protective Cover or Liner for Bed or Couch (Queen Size, 96 x 82 inch), for Dogs and Cats, Babies; Incontinence, Dirt, Drool

Check this out: https://www.amazon.com/dp/B07NP8M8RW? Queen size for $40, washable, and just absorbent enough on the surface. Still good to have a towel around, but this one is full bed-size and works.