Last updated: October 2026
Waking up tired is often down to sleep inertia, the normal grogginess that usually wears off within 15 to 60 minutes. If you still feel exhausted after 8 hours, the usual causes are poor-quality sleep, an irregular sleep schedule, alcohol or caffeine, a stuffy or warm bedroom, or a sleep disorder such as sleep apnoea.
iBelow: the common causes, how to wake up feeling more refreshed, and when to see a GP. For tiredness that lasts all day, see why am I always tired?
Why do I wake up tired?
| Cause | Clues | What helps |
|---|---|---|
| Sleep inertia | Groggy for up to an hour, then fine | Daylight, water, movement, don’t snooze |
| Waking in deep sleep | Worse on some days than others | Time sleep in 90-minute cycles. See our sleep calculator |
| Irregular sleep times | Worse on Mondays (“social jet lag”) | Same wake time every day |
| Alcohol | Waking in the early hours, unrefreshed | Alcohol-free evenings. See hangxiety |
| Caffeine | Light, restless sleep | None after about 2pm |
| Late, heavy meals | Heartburn, broken sleep | Eat 2 to 3 hours before bed. See eating before bed |
| Screens and stress | Racing mind, light sleep | Wind-down routine. See anxiety at night |
| Hot or stuffy bedroom | Night sweats, tossing and turning | Cool, dark, quiet room |
| Sleep apnoea | Loud snoring, gasping, morning headaches | See a GP |
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View productWhat is sleep inertia?
Sleep inertia is the groggy, slow feeling when you first wake up. A 2019 review explained that it affects thinking and reaction times, then fades the longer you’re awake. It’s stronger if you’re short of sleep or wake from deep sleep, which is why the snooze button and long naps can leave you feeling worse. See how long should a power nap be?
Could it be sleep apnoea?
Obstructive sleep apnoea is when your breathing stops and starts while you sleep. According to the NHS, signs include loud snoring, noisy breathing, gasping or choking, waking up a lot, and feeling very sleepy during the day. It’s more common if you’re overweight, drink alcohol or smoke. It’s important to get checked, because it can be treated and untreated sleep apnoea raises the risk of other health problems. See how to stop snoring and the best sleeping position.
How to wake up feeling refreshed
- Keep the same wake time every day, including weekends.
- Skip the snooze button. Set the alarm for when you actually need to get up.
- Get daylight straight away. Open the curtains or step outside. In winter, a sunrise alarm clock can help. See tired in winter.
- Drink a glass of water and move about.
- Wait a little before caffeine if your morning coffee leads to a crash. See coffee crash.
- Build a calming evening routine and keep your bedroom cool and dark. See how to sleep better.
An evening drink can be a simple cue to wind down. Our Magnesium Glycinate Sleep Complex is a berry bedtime drink with L-theanine, and magnesium contributes to a reduction of tiredness and fatigue.
The FSA’s 10mg a day figure for CBD is precautionary advice rather than a legal limit, set while longer-term safety research continues. At Evopure we think it is a very cautious figure, and many adults use more. If you go above it, increase slowly, and check with your GP or pharmacist first if you take any medication.
When to see a GP
iSee a GP if you wake up tired most days despite good sleep habits, feel very sleepy in the day, have signs of sleep apnoea, or struggle with insomnia. They may check for causes such as low iron, low vitamin B12, an underactive thyroid or depression. See iron deficiency symptoms.
Related guides
- Waking with a sore jaw? See teeth grinding.
- How to wake up early without feeling tired.
- Waking up with a headache every morning.
- A good sleep score doesn’t always mean good sleep. See what your sleep score really means.
- Why you get dark circles under your eyes, even after a good night.
- Sleeping for 10 hours or more and still waking tired? Read our guide to oversleeping.
- How to get more deep sleep.
- Sleep debt and how to recover from it.
- Waking with a dry mouth as well? See mouth breathing at night.
- Waking with a blocked nose and a dry throat? It could be a dust mite allergy.
- Unrefreshing sleep and chronic fatigue syndrome.
- For grogginess on dark mornings, read what the research says about sunrise alarm clocks and their limits.
- For what the trials actually found, and which form people choose, see the best magnesium for sleep.
- Why your eyes feel heavy even after sleeping.
- A steady schedule often helps more than an earlier alarm. See the best time to wake up and go to sleep.
- If a blood test rules out a deficiency, our supplements for tiredness guide explains what is worth trying.
- Late caffeine can cut your sleep without you noticing; see how long caffeine stays in your system.
- Fine in the morning but flagging by 3pm? See afternoon slump: why you’re tired at 3pm.
- If you wake up tired mainly in the days around your period, see period fatigue: causes and when to see a GP.
- Remembering lots of dreams often means your sleep was broken; read why vivid dreams can leave you tired.
Sources 4
- Hilditch CJ, McHill AW (2019). Sleep inertia: current insights. Nature and Science of Sleep.
- NHS. Sleep apnoea.
- NHS. Insomnia.
- NHS. Tiredness and fatigue
This guide is general information, not medical advice. Evopure makes the Magnesium Glycinate Sleep Complex and Reishi Mushroom Adaptogenic Complex.
