Our cats love this bed. The sides are really high for this sort of bed so it makes them feel secure. Our cats are very long and tall cats and they can fit in this perfectly so it will suit bigger cats despite the internal circle being of a medium size. The fake fur is really lovely and does not shed which is important. They like it so much I'm getting another one. As a very experienced cat owner of many cats over the years I would advice the reviewer whose kitten urintated on the item that it may not be the bed itself but some litter tray, behavioural or medical problem that their kitty has. Cats don't pee on items because they object to them. But they may pee on them if they are stressed, sick or there is something wrong in their eyes with their litter tray (the tray itself, the litter used, any litter bags used in it, how clean it is or or the position of their litter tray).