Unit 8: Hauora Wairua - Holistic Wellbeing

Health & Physical Education unit exploring Te Whare Tapa Whā framework for balanced wellbeing

Lesson 5

Sleep, Rest & Recovery

Understanding the power of rest for health and performance

⏱️ 60 min
💪 Health & PE

🎯 Learning Intentions

  • Understand sleep stages and what happens during sleep
  • Explain why teenagers need 8-10 hours of sleep
  • Identify how sleep deprivation affects body, brain, and mood
  • Learn evidence-based sleep hygiene practices
  • Create a realistic plan to improve sleep quality and quantity

✅ Success Criteria

  • Explain what happens during REM and deep sleep
  • List 3 consequences of sleep deprivation
  • Describe teenage circadian rhythm changes
  • Demonstrate 5 sleep hygiene practices
  • Design personal sleep improvement plan

📋 Activities

Activity 1: Sleep Reality Check (10 min)

Purpose: Assess current sleep habits and patterns

Instructions:

  1. Quick Poll (2 min): "On average, how many hours do you sleep on school nights?" Students show fingers (4-5, 6-7, 8-9, 10+). Note results on board.
  2. Likely Reality: Most teenagers will be in 6-7 range, well below recommended 8-10
  3. Reflection (3 min): Students answer privately:
    • Do you feel rested when you wake up?
    • Do you struggle to concentrate in class?
    • Do you feel irritable or emotional often?
    • Do you fall asleep easily when you have chance?
  4. Pair Share (3 min): "What stops you from getting enough sleep?" Common answers: Homework, phone/social media, family responsibilities, anxiety, can't fall asleep, early school start
  5. Acknowledge (2 min): "You're not lazy - you're sleep deprived. And there are real reasons why. Let's understand why sleep matters so much."

Activity 2: The Science of Sleep (15 min)

Teach:

Sleep Stages:

  • Light Sleep (Stage 1-2): Body relaxes, easy to wake. Transition to deeper sleep
  • Deep Sleep (Stage 3): Body repairs muscles, bones, tissues. Immune system strengthens. Growth hormone released (why teenagers need more - you're still growing!). Hardest to wake from
  • REM Sleep: Brain highly active, vivid dreams. Memory consolidation - brain organises what you learned that day. Emotional processing. Brain "takes out the trash" (literally - clears waste proteins)
  • Full Cycle: ~90 minutes, repeat 4-6 times per night. Need full cycles to feel rested

What Sleep Does:

  • Brain: Consolidates memories (studying then sleeping = better retention than all-nighter!), clears toxins, processes emotions, boosts creativity and problem-solving
  • Body: Repairs tissues, builds muscle, releases growth hormone, regulates hunger hormones, strengthens immune system
  • Mood: Emotional regulation happens in REM sleep. Sleep-deprived people more reactive, anxious, irritable, sad

Sleep Deprivation Effects:

  • Impaired concentration (like being legally drunk after 17 hours awake!)
  • Slower reaction time (dangerous for driving, sports)
  • Weakened immune system (get sick easier)
  • Increased anxiety and depression risk
  • Weight gain (hunger hormones disrupted)
  • Worse academic performance
  • Riskier decision-making

Quick Activity (3 min): "Think of a time you were really tired. How did it affect you?" Volunteers share - connect to science

Activity 3: Why Teenagers Struggle with Sleep (15 min)

Purpose: Validate teenage sleep challenges as biological, not behavioural

Teach:

Circadian Rhythm Shift:

  • Around puberty, biological clock shifts 1-2 hours later
  • Melatonin (sleep hormone) releases later at night
  • Natural wake time shifts later too
  • Result: Teenagers naturally want to sleep 11pm-9am
  • But school starts at 8:30-9am = chronic sleep debt

Modern Challenges:

  • Blue light: Phones/screens emit blue light that blocks melatonin production. Brain thinks it's daytime
  • Stimulation: Social media, games, shows keep brain alert and activated
  • FOMO: Fear of missing out keeps teens online late
  • Academic pressure: Homework load extends into night
  • Mental health: Anxiety/depression disrupt sleep (and poor sleep worsens mental health - vicious cycle)

Discussion (7 min):

"Knowing you're biologically wired to stay up late, AND school starts early, AND you need MORE sleep than adults... what could help?"

Brainstorm solutions - individual level (since we can't change school start times):

  • Power naps (20-30 min max to avoid grogginess)
  • Weekend catch-up (can help but doesn't fully fix weekday debt)
  • Strategic sleep timing
  • Communicate with teachers if drowning in homework
  • Say no to some commitments to protect sleep

Acknowledge systemic issues: "Ideally, schools would start later - research shows this dramatically improves teen health and grades. Advocate for this! But also work with reality you're in right now."

Activity 4: Sleep Hygiene Strategies (15 min)

Purpose: Learn practical evidence-based strategies to improve sleep

Teach Sleep Hygiene Practices:

  1. Consistent Schedule: Same bedtime/wake time (even weekends if possible). Trains body clock
  2. Screen Curfew: No screens 30-60 min before bed. Use night mode/blue light filters if must use phone
  3. Dark, Cool, Quiet Room: Darkness triggers melatonin. Cool temp (16-19°C ideal). Earplugs/eye mask if needed
  4. No Caffeine After 2pm: Caffeine lasts 6+ hours. Includes coffee, energy drinks, some teas, chocolate
  5. Wind-Down Routine: Same calming activities signal bedtime (reading, stretching, shower, music, breathing)
  6. Use Bed Only for Sleep: Not homework/phone time. Trains brain: bed = sleep
  7. If Can't Sleep: After 20 min, get up and do something calming. Return when sleepy. Don't stress about not sleeping - that makes it worse!
  8. Morning Light: Get sunlight in morning - helps regulate circadian rhythm
  9. Exercise: Regular exercise improves sleep (but not right before bed)
  10. Limit Naps: If needed, keep under 30 min and before 3pm

Activity - Create Sleep Hygiene Checklist (7 min):

Students create personal checklist on handout:

  • Which of these do I already do? ✅
  • Which could I realistically start? 🔄
  • Which are impossible for me right now? ❌ (noisy house, family schedule, etc.)

Focus on 2-3 changes to try this week

Activity 5: Personal Sleep Improvement Plan (5 min)

Instructions:

  1. Goal Setting (3 min): Write specific plan:
    • Target bedtime this week: _____
    • Target wake time: _____
    • Hours of sleep this gives me: _____
    • Top 3 sleep hygiene practices I'll try:
      1. _____
      2. _____
      3. _____
    • Biggest barrier to this plan: _____
    • How I'll overcome it: _____
  2. Commitment (1 min): Sign and date your plan - commitment to yourself
  3. Exit Ticket (1 min): "One thing I'll do differently tonight for better sleep is..."

Teacher Message: "You can't fix sleep overnight (ha!). Start small. Even 30 extra minutes of sleep makes a difference. Your brain and body will thank you. Sleep is NOT lazy - it's essential for being your best self."

🏠 Homework

Required: Sleep Experiment (Week-long)

Try your sleep improvement plan for one week. Track:

  • Actual bedtime and wake time each day
  • Hours slept
  • How rested you feel (1-10 scale)
  • Mood and energy during day
  • What helped or hindered sleep

Next lesson: Reflect on what worked

Optional: Sleep Environment Makeover

Make one change to your sleep environment this week (darker room, tidier space, remove phone, cooler temp, etc.). Notice if it helps.

📚 Resources

  • Sleep hygiene checklist handout (one per student)
  • Sleep tracker worksheet
  • Whiteboard for notes
  • Optional: Sleep cycle diagram visual
  • Optional: Blue light filter info cards to take home

Digital Resources:

  • Sleep Foundation: Teens and Sleep guide
  • National Sleep Foundation website
  • Sleep tracking apps (if appropriate): Sleep Cycle, Sleep Town

🤔 Teacher Reflection

What worked well?

What would you change?

Students showing concerning sleep issues:

Did students seem to connect with this topic?

Curriculum alignment

  • Health & Physical Education: Understand that wellbeing is a dynamic state determined by physical, social, mental/emotional, and spiritual dimensions of health.
  • Social Sciences: Understand how people participate individually and collectively to support community wellbeing.