ha! My Prego would never sleep on anything bought with him in mind :-)

Sounds just like my Murphy. We bought him a radiator hammock for his
birthday as he loves to stretch out by the radiators. He has never ever even
set one paw on it. Our other two cats love it, as do my neighbour's two
cats, another neighbour's two cats and a stray that wanders in once in a
while.

Jane