How Much Sleep Do We Need?

Sleep researchers believe there is no magic number for "sleep need" and there are a lot of individual differences in what children and adolescents need to sleep to be at their best. But below is a guide of the best evidence we have so far.
Babies under 1: 14-18 hours throughout the day and night
Toddlers: 12-14 hours per 24 hour period
Primary school: 10-12 hours per day
High school: 8-10 hours per day
Adults: 7-9 hours per day
WHAT HAPPENS WHEN WE DON'T GET ENOUGH SLEEP? Many things can be effected when we do not sleep enough such as:
Behaviour - aggressive. antisocial, withdrawn, hyperactive, unable to control or regulate behaviour
Emotion - Moody, depressed, anxious, stressed, uneasy, unconfident, irritable
Planning - poorly organised, poor time managers, repeating grades, forgets lessons
Concentration - inattentive, lack of concentration, falling behind in school
Creativity - not working at full potential
Problem solving - poor behaviour control and difficulty in social situations
Complicated thinking - struggles with maths, sciences, languages, abstract concepts
Motor coordination - less sporty, more accidents, clumsier
Weight - being obese and overweight is more likely with less sleep
Health - poorer immune system - sicker more often
Learning - it is though that sleep, particularly dream sleep or REM sleep, is necessary for storing certain types of memory, particularly more difficult memories such as mathematical concepts and language.
GOOD SLEEP HYGIENE CAN HELP PROMOTE GOOD SLEEP WHAT IS SLEEP HYGIENE? "Sleep hygiene" - this can be defined as habits that can help us to sleep or stop us from sleeping. If you or someone you know is having trouble sleeping you can try to change or include some of the things on this list and see if it helps.
No TV/computer games 1 hour before bed. No TV s in bedrooms
Monitor mobile phone use in bed
No coke/caffeine, high sugar or high spicy food 3-4 hours before bed
Ensure relaxing and regular bed time routine - special time with children, relaxation techniques such as breathing
No vigorous exercise 1 hour before bed - it raises the body temperature
Finish eating 2-3 hours before bed - digestion competes with sleeping - hot milk is OK
Make sure the bedroom is comfortable (temperature, light, noise)
Set bedtimes and wake times - try and keep these regular
Learn to relax - deal with worry and stress
Use a sleep diary to check how many hours you are sleeping - Are you sleeping enough?