So far, so GOOD!  While both big dog girls have their own bed in the bedroom, they often want to lay next to each other, or perhaps just closer to me.  So always had to fill in a gap with pillows.  this one is a nicer and denser foam than the one I am pulling out and fills the gap by using "crosswise".  Have not yet had to remove the cover for washing, but suspect it will be far easier, as the old one had squished outward, making it a most horrible struggle and enough to give an ald lady a heart attack, so thank you!