Charlie's strange sleeping habits

Charlie sleeps pretty funny at night and has for a while.  He refuses to have any blankets or sheets on him (unless he's in bed with mom in the morning and then he's just fine with blankets).  And he also sleeps sideways in his bed and usually curled up in a ball laying on his legs with his feet against the wall.  There are many times he wakes up with his legs hurting since they'll all scrunched up instead of laying out flat.  It has something to do with not wanting to look at the rocking chair. I told him he could look at the wall instead, but he will not listen to us about sleeping normally.  Lately, he's taken to initially falling asleep in the doorway next to Reese's bed.  I think part of it is he likes to be next to Reese, so it's kind of sweet.  When Wes or I go up to bed, we put him in his bed the normal way and cover him up, but whenever he wakes up, he immediately pushes back the sheets/blankets and curls back up in a ball.  He's one funny little boy.  Maybe someday he'll sleep normally in his bed.