How Much Sleep Do Kids Need? School-Age Sleep Guide

The ranges are guides, not targets to hit exactly. Some children do well at the lower end and others need the upper end. Watch how your child behaves during the day. The full guidance is in the AASM statement.

A quick bedtime example

A child aged 6 to 12 who wakes at 6:30 am needs to be asleep between 6:30 pm (for 12 hours) and 9:30 pm (for 9 hours). Aiming for lights out around 8:00 to 9:00 pm works well for most children. Count backwards from the wake-up time, and allow 20 to 30 minutes for falling asleep.

Why Healthy Sleep Matters for Learning and Exams

The AASM notes that sleeping the recommended hours regularly is linked to better attention, behaviour, learning, memory and emotional regulation, while regularly sleeping fewer hours is linked to attention, behaviour and learning problems. In everyday school life, this shows up as:

• Focus: a rested child can follow a lesson and stay on task for longer.
• Memory: sleep helps the brain settle what was learnt during the day.
• Mood: tired children are quicker to get frustrated, which makes tests and group work harder.
• Energy: sleep supports play, movement and a healthy appetite.

These are associations seen across many studies, not a guarantee for any single child. Sleep is one part of a healthy routine, along with food, movement and a supportive home.

Signs Your Child Is Not Getting Enough Sleep

• Hard to wake up in the morning, even after a full night in bed
• Cranky, tearful or easily upset in the evening
• Trouble concentrating, or hyperactive behaviour instead of sleepiness
• Falling asleep in the car, or yawning through the day
• Needing long weekend sleep-ins to catch up

A Simple Bedtime Routine for Kids

A routine tells the body that sleep is coming. Keep it short, calm and the same every night.

• Fix the wake-up time first. A steady morning time, including weekends, sets the body clock.
• Switch off screens 30 minutes before bed, and keep TVs and tablets out of the bedroom, as the American Academy of Pediatrics advises.
• Wind down for 30 to 45 minutes. A bath, a story and a short chat about the day work well.
• Keep dinner light and early, and avoid cola or energy drinks, especially for teenagers.
• Make the room dark, cool and quiet.
• Get daylight and outdoor play every day. Time outside and physical activity help children feel ready for sleep at night.

Montessori education encourages children to take part in their own routines. Let your child choose the bedtime book, lay out tomorrow’s clothes and pack their school bag. These small choices build independence and make bedtime feel less like a battle. This is the same idea as freedom within limits: the bedtime is fixed, and the child decides the small things within it.

Sleep During Exam Time

• Do not trade sleep for late-night cramming. A tired mind recalls less.
• Revise earlier in the day, and finish studying about an hour before bed.
• Keep the usual bedtime, even during exam week.
• Plan a short revision of key points in the morning instead of a long late-night session.
• Stay calm yourself. Children pick up on parental stress, and a relaxed evening helps them sleep.

When to Talk to a Doctor

Speak to your paediatrician if your child snores loudly, pauses in breathing during sleep, has frequent nightmares or sleepwalking, or takes a very long time to fall asleep despite a steady routine. Persistent daytime sleepiness is also worth checking.