Teen sleep,
a 45‑minute class activity.
Students play myth or fact, score their own sleep, and leave with one habit to try for a week. No sign-up, no answers saved, no products.
- Ages
- 13 to 17
- Time
- 45 minutes
- Needs
- A device per student or pair
- Cost
- Free, no accounts
45 minutes, five steps.
Plus a follow-up one week later.
- 15 minMyth or factRead each card aloud. Students vote with a show of hands, then flip it.
- 210 minTake the quizStudents score a typical school night. Teen mode is on and scores stay private.
- 310 minPair talkPairs compare the part they lost most points on, not their totals.
- 410 minKey factsGo through five sourced facts, or present them full-screen.
- 510 minSet a goalEach student picks one change and starts the 7-day sleep diary.
One week later: students bring back the diary, take the quiz again and compare the two results.
By the end, students will:
- 01
Know that teens need 8 to 10 hours of sleep a night, and why it gets harder to fit in at this age.
- 02
Score their own sleep and name the part pulling it down most.
- 03
Pick one change, try it for a week and track it.
Myth or fact?
Read each card aloud and take a vote before you flip it. Every answer comes from the sources at the bottom of the page.
Score your sleep.
Answer for a typical school night. Teen mode is already on, and your score stays on your screen.
It takes about three minutes. Afterwards, note the part you scored lowest on: that is what you will talk about in pairs.
Talk it through in pairs.
- 1Which of the five parts did you lose the most points on? What might be behind it?
- 2What gets in the way of sleep on a school night: homework, phones, sport, a job, family, noise?
- 3How different are your bedtimes on school nights and at the weekend? How do you feel on Monday morning?
- 4If you stopped caffeine 6 hours before bed, what time would your last drink be?
- 5Which one change would be easiest for you to try this week?
Sleep can be a sensitive subject. Do not ask students to share their score with the class. If a student's result shows the “see a clinician” message, or they say they often cannot sleep or always feel tired, suggest they talk to a parent, the school nurse or a doctor. The quiz is a self-check, not a diagnosis.
Five facts to go through.
- 01
Teens need 8 to 10 hours
Teenagers aged 13 to 17 need 8 to 10 hours of sleep a night, more than the 7 or more hours recommended for adults.
Sources: CDC; American Academy of Sleep Medicine, 2016
- 02
Sleep affects school, health and safety
The CDC says enough sleep supports students' physical health, mental health, safety and ability to focus at school, and that too little can make concentrating harder and increase risky behaviour, especially unsafe driving.
Source: CDC Youth Risk Behavior Survey
- 03
Puberty shifts sleep later
Puberty changes sleep timing: most teens start to fall asleep and wake up later than they did as children. The American Academy of Pediatrics names early school start times as one reason teens get too little sleep, and urges middle and high schools to start no earlier than 8:30 a.m.
- 04
Caffeine lasts for hours
In a sleep study of adults, a large dose of caffeine taken 6 hours before bed still disturbed that night's sleep. The researchers advise no substantial caffeine for at least 6 hours before bedtime. Coffee, energy drinks, tea and many sodas contain caffeine.
Source: Drake et al., 2013
- 05
Screens before bed delay sleep
In a small study of young adults, reading on a light-emitting e-reader before bed, compared with a printed book, meant taking longer to fall asleep, making less melatonin (the hormone that signals night-time) and feeling less alert the next morning.
Source: Chang et al., 2015
Pick one change. Track it for a week.
Each student writes their one change at the top, fills in a row every morning, and brings the sheet back next week to retake the quiz.
My 7-day sleep diary
Name: ______________________________
My one change: ______________________________
| Day | Bedtime | Wake time | Hours slept | Last caffeine (time) | Screens in the last 30 min before bed? (Y/N) | How I felt on waking (1 to 5) |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 2 | ||||||
| 3 | ||||||
| 4 | ||||||
| 5 | ||||||
| 6 | ||||||
| 7 |
My average hours slept: __________
Did it help? What will I keep? __________________
Teens aged 13 to 17 need 8 to 10 hours a night (CDC). From sleepyhero.com/tools/sleep-score-quiz/classroom
What happens to students' answers
- No account, sign-up or email address. This page never asks for an email.
- Answers are sent once to work out the score and are not stored.
- If students choose “Essential only” on the cookie banner, Google Analytics, Microsoft Clarity and the other optional analytics stay off. One visit counter (Ahrefs Web Analytics) still records that the page was opened; it never receives quiz answers.
- This page shows no products and no ads.
- 1. Centers for Disease Control and Prevention. 'About Sleep': teens 13 to 17 years, 8 to 10 hours; adults 18 to 60 years, 7 or more hours. Read it
- 2. Paruthi S et al. 'Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine.' Journal of Clinical Sleep Medicine, 2016. Read it
- 3. Centers for Disease Control and Prevention. 'Youth Risk Behavior Survey: Sleep.' Read it
- 4. American Academy of Pediatrics, Adolescent Sleep Working Group. 'School Start Times for Adolescents.' Pediatrics, 2014. Read it
- 5. Drake C et al. 'Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed.' Journal of Clinical Sleep Medicine, 2013. Read it
- 6. Chang AM et al. 'Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness.' PNAS, 2015. Read it
Prepared by SleepyHero from the published sources above. Updated 30 October 2026. For learning, not medical advice. More on how the score works is on the main quiz page.