Here's some research to backup what moms and dads know: In the journal "Pediatrics" researchers found that, on average, children's behavior got worse as the number of nights they did not get to bed on time increased. This research data was collected in London on 10,230 7-year-olds with bedtime information collected from interviews with mothers when the children were 3, 5, and 7.
However, there's good news! The effects of not having a regular bedtime appear to be reversible. "For children who changed from not having to having regular bedtimes, there were improvements in behavioral scores." Yea! It's never to late with our kids.
How can Practickle help? If you find that your evening is running behind schedule, shorten your regular story time. Give your child a new Practickle book with guidance to look at the illustrations on their own as they are lying in bed. You may even point out a few things that they may look for as they are falling asleep. The next evening your story time may begin with a review of the illustrations. Or, if there isn't a new book around, give them one of the older Practickle books that they can read on their own:) Then, relax! If the kids are behind schedule, you must have had a very busy day!
(Source: Minneapolis Star/Tribune - 10/18/2013)