I'm interested to know what happens to a child if they do not get enough sleep?

Any symptoms ???: Sleep deprivation will usually lead to a crabby kid who is a bit more sickly than their peers ; less interested in sustained play. A kid falling asleep at odd moments or while other kids are playing is sleep deprived.Sleep talking and night terrors are sometimes seen. If kid sleeps well at night for > 9 hours, feeds well, plays at the same level as their friends is ok.