Why so late? And why only for 1 HR. I think a 2 yr old needs a scheduled bed time of no later than 8 - 10 pm.
You might want to check the American Academy of Pediatrics Website. They have a lot good information and I am sure they have some information and resources about the importance of sleep (especially in kids and teenagers). Additionally, I would recommend your friend talk with their pediatrician. Pediatricians have a lot of great information and brochures. Additionally they will have some recommendations to make bed time run more smoothly.
Thanks! Your answer is awaiting moderation.