One reason: Fatigue alters the levels of appetite-regulating hormones, which can cause children to eat more, says Shahrad Taheri, M.D., author of the review.
To make sure your child gets all the snoozing she needs:
* Stick to regular sleep and wake-up times, even on weekends.
* Create a calming bedtime routine, like a warm bath followed by a book.
* Limit caffeinated beverages, especially before bed.
* Keep her room dark and quiet at night, which means no TV.
* Encourage her to exercise (active kids tend to sleep better) -- but not right before heading to bed.
* Make sure she has enough downtime, since stress can lead to sleep problems.