Just got the new dog bed with the cooling mat so unable to give 5 stars until I see how it holds up  if my dog likes it.  Our 100 lb Weimador seems to really like it, she picked it from 2 other beds she’s had.  Hoping cooling will be nice in the summer.  I’m not crazy about the material, but if it 
washes up it will be fine.  Nice zipper on bottom to remove the cover to get cover clean which is good.  We did not get the largest, this size is plenty big.