I have other Serta dog beds.  This is nothing like them.  The base is such thin foam it’s almost like nothing.  I’m not sure if this is even really how it’s supposed to be.  I’d have to pay return shipping, and I’m not willing to do that.  This bed is not Serta quality.
***editing to add - I just fit the foam pad and nearly all the fiber fill from my pup’s old bed into this new cover WITH what came in the new bed.  I basically paid for a new cover.