Teenagers and Sleep: The Fight Hiding Under Other Fights

The short answer: many teenage fights are sleep fights in disguise. Teenagers need eight to 10 hours, their body clock runs late, and every phone in the house should sleep outside the bedroom, the adults’ too.

Before you decide this morning’s fight was defiance, ask one question: what time did the phone go down last night?

In many homes I hear about, the shouting is about homework, chores or “attitude”. Underneath, it is about sleep. A tired teenager has a short fuse, a poor memory and no patience. Then the adults, who are also tired, meet that fuse at seven in the morning.

How much sleep teenagers need

The American Academy of Sleep Medicine says: “Children six to 12 years of age should sleep nine to 12 hours per 24 hours on a regular basis to promote optimal health” and “Teenagers 13 to 18 years of age should sleep eight to 10 hours per 24 hours on a regular basis to promote optimal health” (AASM).

The same panel found that “sleeping fewer than the recommended hours is associated with attention, behavior and learning problems”, and that “insufficient sleep in teenagers is associated with increased risk of self-harm, suicidal thoughts and suicide attempts.”

That last line is why I don’t treat sleep as a small thing.

Why they can’t just go to bed earlier

The teenage body clock shifts later. Many teens genuinely don’t feel sleepy until late at night, then can’t wake up in the morning. For teens with ADHD, nights often run even later. This is not laziness. But the phone in bed at midnight makes it much worse, and that part is in our hands.

Before you call it defiance: a five-line check

Next time there is a fight, check these before you decide what it was:

1. What time did the phone go down last night?
2. Roughly how many hours did they sleep?
3. Have they eaten today?
4. Is this the third short night this week?
5. Was the fight in the morning, or late in the evening when everyone was tired?

If the answers point to sleep, the fight was partly a sleep fight. Deal with the rudeness, yes. But fix the sleep, or you will have the same fight tomorrow.

What the adults change first

• Every phone in the house sleeps in the same place at night, the adults’ phones too. A rule the adults don’t follow isn’t a rule. Teenagers copy what they see more than what they hear.
• Agree a wind-down time together, instead of announcing a lights-out time. “When do you think the phone should go down so you’re not wrecked tomorrow?” A teenager keeps a rule they helped make much better than one handed to them.
• Talk about sleep as fuel, not as a rule. For their football, their mood, their game, their skin, their exams. Whatever they care about.
• Protect the morning. Clothes and bag ready the night before. One reminder, not five.

The responsibility part

I believe in giving teenagers responsibility for their own time. So the sleep agreement is theirs as much as yours: they help set it, and if they don’t keep it, there is a consequence for not keeping the agreement, not for being tired. The point is not to control their night. It is to teach them to manage their own body, which they will need at university, at work, and later with their own children.

When to get help

Talk to their doctor if they sleep badly most nights for weeks despite the changes, are exhausted all day, or seem low and withdrawn most days for two weeks or more. If they talk about hurting themselves, reach a doctor or a crisis line today. If they are in danger, call your local emergency number.

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Next step

Turn the morning into one reminder. Answer a few questions about the task that needs the most reminders, and build a plan together. Remind once → Bedtime calculator →

Sources

• American Academy of Sleep Medicine. Recharge with sleep: pediatric sleep recommendations promoting optimal health. aasm.org