Crib or bed?

My baby sleep beside adults on the same bed since he was born. But im facing an issue that he do not want to be in the crib when i send him to infant care. They are now letting him to sleep in the rocker. But i worry that his head will become flat because the he can only lay down flat in the rocker. May i ask what should i do? He is now 10months. #1stimemom #advicepls