We haven't had a problem with our cat when he's in that space, except when he climbs down into the space behind the cabinet door. We are not sure if he can climb back up so we leave the left door open if we are away. When we bought our 24R, they showed us that you can lift the close half of the bed - I believe it's hinged at the front. Anyway, our unit has 2 wires that cross through the area and more wires behind right cabinet with water filter. I don't think it's a problem unless your cat likes to chew wires or is a kitten small enough to climb into the area we with the water filter.