Are just far more comfortable.
What have I learned from this? Leave them be. Who really cares where they’re sleeping, as long as they are? By the way, stair landing and on daddy are totally the same night. We moved him from the stairs (because, ya know, hazard!), but after a few hours in his bed, he ended up in ours. I figure it won’t last forever, so I may as well let them sneak in our room in the wee hours. I’ll get sleep without kicks in the kidney when they’re in high school.