Sleep problems are more common than we think among kids. When kids sleep, they switch between REM sleep and non-REM sleep. While in REM sleep mode, the eyes tend to move around faster, the body does not move much and the child dreams. REM is a lighter stage of sleep from which it is easier to awaken. Non-REM sleep or NREM is a deeper sleep. Infants can go through the complete sleep cycle in about an hour, so they are often in the lighter sleep mode and can wake up several times in the night. Article Source: http://EzineArticles.com/4222622
