Feeling tired even after 8 hours of sleep? Learn the common causes of morning fatigue and what you can do to fix it.

Feeling tired after a full night’s sleep is more common than you think. Sleeping longer does not always mean sleeping better.

One major reason is poor sleep quality. Frequent waking during the night, even if you don’t remember it, can stop your body from reaching deep, restorative sleep. Stress, anxiety, and excessive screen use before bed are common causes.

Another reason is sleep timing. Sleeping at irregular hours can disrupt your circadian rhythm, making you feel exhausted despite enough hours in bed.

Medical causes such as anaemia, thyroid problems, dehydration, or sleep apnoea can also lead to persistent fatigue.

What you can do:

Maintain a fixed sleep and wake time Avoid screens at least 1 hour before bed Stay hydrated throughout the day Reduce caffeine after midday

When to worry:

If fatigue lasts more than 2–3 weeks despite good sleep habits, consult a healthcare professional.