Topic 14 of 24
Puberty genuinely changes sleep: it arrives later, it feels lighter, and it is harder to wake up. This section covers the biology, what actually helps, and when persistent exhaustion is worth investigating.
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Teenagers generally need 8 to 10 hours. Puberty shifts the body clock later by about an hour or two, so feeling wide awake at midnight is biological rather than a character flaw. The problem is usually the wake-up time, not the bedtime.
Puberty genuinely shifts your body clock later, so feeling wiped out is common at this age. Sleep, iron, food, stress and screen habits all contribute. Persistent exhaustion deserves a look-up rather than a shrug, because iron deficiency, thyroid problems and poor sleep are all treatable.
Night waking is common in adolescence, and several things drive it: a shifted body clock, going to bed later than your body wants, screens before bed, stress, alcohol, and sometimes sleep apnoea or other conditions. Persistent night waking with unrefreshing sleep is worth mentioning to someone.
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