When I'm sick, I sleep on the couch. When I'm not I sleep in my bed.

I just woke up from a five hour nap on the couch. I came home from work today, as pale as a ghost and feeling very weak and nauseous.  The second I walked in  the door I grabbed a blanket and passed out on the couch. I vaguely remember two other people showing up at various times to walk my dog for me, which I was grateful for because he kept dropping a Frisbee on my head ever five seconds. 
 At one point when I woke up I kinda realized something, Except for very rare occasions I sleep on the couch when I am sick. You'd think my own bed would be more comfortable and preferable, but no, if I am sick, I want the couch. I think it comes back to when I was a kid,  my mom always had us sleep on the couch when we were sick so that she could have easier access to helping us (I think, I don't really remember but this makes sense.). 
Now my mom is no longer here to help me but sleeping on the couch is closer to the kitchen, if I need water or something, but further from the bathroom- so that's a draw back. My own bed wouldn't have woke me up when people came to walk my dog, but if someone came without their own key I could easily get to the door to contaminate them.  I still like sleeping on the couch when I am sick. Its somehow comforting.