Sleeping on the couch

The Kid doesn't like sleeping on his bed. Despite the cool Star Wars sheets, comfy memory foam pad and all the amenities a four-year-old could desire, he won't sleep in his bed! For several weeks he would sneak into our room in the middle of the night and take over the bed. Then we had the idea of moving a loveseat into our room and that became his sleeping spot. We had to start bribing him to start sleeping in his room again. I now know we for sure have a problem with his couch habit. The other night during a friend's birthday/ housewarming party, he laid down in the middle of the party sprawled on the couch to catch some ZZZs. Oh boy.