mine go on the table but not the counters. i dont not let them on the sides but they chose not to apart from 1 who will not eat with the other cats so will only eat up there. but other then that they dont . the table and sides would be throughly cleaned weather or not the cats got up there or not i dont see a problem with it . as for sleeping with you , what is the difference? you cat could have had a nice **** in the litter box steped in it while covering come lay on your bed while your asleep and stick his/her paw near your mouth lol. so i dont see the difference. btw as far as i know that hasnt happend.