Standing in crib

luvbug6315

My dd has recently figured out how to stand in crib. It sucks. She plays for awhile, runs around crib then sits. Once she sits she gets tired and keeps folding over like a clam and sleeping. If I go in and try to move her, she wakes up. If I leave her she wakes up after like ten minutes. Then wont go back to sleep. How can I teach her to lay down?