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Back to School, Back to Sleep

Reviewed By Stuart Meyers, MD
By Michael Breus
WebMD Feature

The new school year is upon us. From bedtime battles to the misery of morning call, summertime sleep habits die hard. Late summer nights combined with early school start times, and the stresses of just being a kid, deprive our children of essential sleep. And sleep deprivation often wreaks havoc with health, academic performance, and behavior. It is an unrecognized epidemic.

From elementary school through high school and beyond, a great many of our children are chronically sleep-deprived. With more than more than 2/3 of all children having some kind of sleep problem, and most adolescents not getting enough sleep, many will struggle to meet the barrage of new challenges, demands, and emotions of a new school year. It is not widely recognized and appreciated just how pervasive and critical quality sleep is for brain development and how it directly influences daytime functioning, performance, mood, and behavior. When was the last time your doctor or school teacher asked about your child's sleep? Parents wouldn't think of letting their child skip meals or run into a busy street, but staying up late is very often of little concern. It shouldn't be.

Sleep Affects How Your Child Thinks, Feels and Functions and Impacts Academic Performance
More and more research studies demonstrate that daytime sleepiness from chronic sleep deprivation and poor quality sleep has significant impacts on daytime behavior and academic performance, as well as concentration, attention, and mood. Even 20 fewer minutes of needed sleep may significantly affect behavior in many areas. One study showed that those students with C's, D's and F's got about 25 fewer minutes of sleep and went to bed an average of 40 minutes later than A and B students. The pediatric research findings are startling and alarming:

  • Poor sleepers reported being significantly more depressed, without energy, tired, tense, moody, stressed, irritable, and less rested and alert than good sleepers. Interestingly and importantly, they were also more likely to have a negative self-image, which, in light of the above, is not surprising.
  • Insufficient sleep has been associated with daytime fatigue, inability to concentrate in school, ADHD, a tendency to doze off in class, problematic behaviors, and lower levels of social skills. One study showed that teachers believed that some children with sleep disturbances were hyperactive and less attentive.
  • Persistent sleep problems are associated with learning difficulties throughout the school years. In fact, several studies suggest specific academic deficits, including poor school performance.
  • Poorly performing first graders with sleep disordered breathing showed significant improvement in their grades after treatment.
  • Poorly performing seventh graders were 2-3 times more likely to have frequent and loud snoring.
  • Poorly performing middle schoolers were more likely to have snored in early childhood.
  • Poor sleepers were more likely to display type A behavior patterns.
  • Teenage insomnia has been related to anger, depression, difficulty with school adjustments, and stress. And studies suggest that insomnia often begins early in life and persists into adulthood.
  • Sleep-disturbed elementary school-age children may have poorer coping behaviors and display more behavioral problems at home and in school.
  • Several studies report that more total sleep, earlier bedtimes, and later weekday rise time are associated with better grades in school.
  • Those with poor grades are more likely to sleep less, go to bed later, and have more irregular sleep/wake habits.
  • Failure rates on exams for medical students were markedly higher (42%) for frequent snorers than for non-snorers (13%)

From Elementary to High School, Sleep Problems Are Pervasive and Widespread
You may be surprised to learn how prevalent sleep problems are. In studies of elementary school-age children, nearly 40% showed some kind of sleep problem, and 10% had daytime sleepiness.

Adolescence: Sleeplessness impacts personal health and public safety

With increasing freedom from parental control, social activities and academic challenges, sleep is not exactly a high priority for adolescents, and the sleep time most teenagers get is insufficient: the average is under 7 1/2 hours, with only 15% sleeping 8 1/2 hours or more on school nights and more than 25% typically sleeping 6 1/2 hours or less. Up to half of adolescents reported at least occasional difficulty falling or staying asleep, with up to 13% experiencing chronic and severe insomnia.

Sleepless adolescents are not just tired teenagers. They are at increased risk for negative moods, impaired memory, motivation and ability to think and make good judgments. Drowsy driving together with "microsleeps" (i.e., unintended sleep episodes) add up to increased automobile accidents, of which teens are heavily represented.

Late to Bed, Early to Rise, Makes Us Cranky, Moody and Cry
The first day of school often initiates a cycle of poor sleep and problematic behaviors that may be difficult to break. It goes something like this:

  1. Late Bedtimes, Early Start Times: Late summertime bedtimes collide with early school start times; so kids start the new school year being sleep-deprived.
  2. Sleep Debt Builds: Each day they lose more sleep, building up a "sleep debt" that, like all debts, must be paid-off.
  3. Weekend Catch-up - There's a Catch: Now comes the weekend, and we feel good that our child sleeps late, catching-up on all that sleep. But wait just a minute - there's a catch to that catching-up: it is actually a big red flag that your child is not getting enough sleep, and late weekend sleeping actually perpetuates the whole dysfunctional sleep pattern.

      Interestingly, a study in which school start times were moved from 7:15 a.m. to 8:40 a.m., resulted in children getting an hour more sleep each night and improved attendance.

      Late-night-type, rebellious adolescents are predisposed to this pattern and often complain that it is very hard to fall asleep, easier to fall asleep if bedtimes are later, hard to wake in the morning, late to school and sleep late on weekends.

      Sound Familiar?

    What keeps you awake?

    • Work worries
    • Relationship worries
    • Financial worries
    • Kid worries