The bed appears well made; zippers function, the foam feels sturdy for our 20# Schipperke.   Initially he was unsure of the crunching sounds of the mattress, however a towel inserted under the top cover dampened the noise.  This also will serve as an insertion for a heat pad, should his 10 year old joints feel that need.

Pros: Durable, comfy cover
Cons: The noise of the cover