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Published on: 2/13/2026
An irresistible urge to sleep during the day can have several, often treatable causes in women, including not enough or poor quality sleep, hormonal shifts, iron deficiency, thyroid problems, depression or anxiety, sleep apnea, and narcolepsy. There are several factors to consider. See below for practical next steps like improving sleep habits, tracking symptoms, reviewing medications, checking labs, considering a sleep study or a narcolepsy symptom check, and seeking urgent care for red flags such as dozing while driving, chest pain, fainting, or sudden neurological changes.
Do you struggle with an irresistible urge to sleep during the day, even after what seems like a full night's rest? If you find yourself fighting to keep your eyes open at work, while driving, or during conversations, you're not alone. Excessive daytime sleepiness affects many women — and it's often misunderstood or dismissed as "just being tired."
Here's what you need to know about why this happens, what it could mean, and what to do next.
Everyone feels tired occasionally. But an irresistible urge to sleep during the day is different from ordinary fatigue.
You might notice:
If this happens frequently or interferes with daily life, it deserves attention.
Women face unique biological and lifestyle factors that can increase daytime sleepiness. Here are some of the most common causes backed by medical research:
The most common cause is simply not getting enough quality sleep.
Common reasons include:
Adults typically need 7–9 hours of sleep per night. Consistently getting less can cause persistent daytime drowsiness.
Hormones play a major role in sleep regulation.
Women may experience an irresistible urge to sleep during the day during:
Progesterone, in particular, can increase sleepiness. During pregnancy, fatigue is especially common in the first trimester.
Iron deficiency — even without full anemia — is common in women, especially those with heavy periods.
Symptoms can include:
A simple blood test can check iron levels.
An underactive thyroid (hypothyroidism) slows metabolism and can cause:
This condition is more common in women than men and is diagnosed with blood tests.
Mental health conditions often affect sleep patterns.
Depression can cause:
Anxiety can disrupt sleep at night, leading to daytime exhaustion.
If mood changes accompany sleepiness, it's important to discuss both with a healthcare provider.
Sleep apnea is often underdiagnosed in women because symptoms may be less obvious.
Instead of loud snoring, women may report:
Sleep apnea causes repeated breathing pauses at night, leading to poor-quality sleep and an irresistible urge to sleep during the day.
Narcolepsy is a neurological sleep disorder that causes overwhelming daytime sleepiness.
Symptoms may include:
If your daytime sleepiness feels sudden, intense, or uncontrollable, you can take a free AI-powered Narcolepsy symptom checker right now to help determine if your symptoms align with this condition and learn what steps to take next.
An irresistible urge to sleep during the day should not be ignored if it:
In rare cases, severe sleepiness can be linked to neurological conditions or serious medical issues. If symptoms are sudden, severe, or worsening, seek medical attention promptly.
While you arrange a medical evaluation, these strategies may help improve daytime alertness:
Keep a simple sleep diary for 1–2 weeks. Record:
This information can help your doctor identify patterns.
Some medications can cause daytime sleepiness, including:
Never stop medication on your own, but ask your doctor if adjustments are possible.
Your healthcare provider may recommend testing for:
These are common and treatable contributors to fatigue.
If you report an irresistible urge to sleep during the day, your doctor may:
If narcolepsy or another sleep disorder is suspected, specialized sleep testing may be required.
Many women normalize extreme fatigue and push themselves to keep going. But persistent daytime sleepiness is your body's signal that something may need attention.
Untreated sleep disorders can increase risk for:
Addressing the root cause can dramatically improve quality of life.
An irresistible urge to sleep during the day is not something you should ignore — especially if it's frequent, intense, or interfering with daily life.
Common causes include:
Many of these conditions are treatable once identified.
If your symptoms are persistent or concerning, consider using a free AI-powered Narcolepsy symptom checker to get personalized insights before your doctor's appointment — it only takes a few minutes and can help you better understand your symptoms.
Most importantly, speak to a doctor about any symptoms that are severe, worsening, or potentially life-threatening — such as falling asleep while driving, fainting, chest pain, or sudden neurological changes.
You deserve to feel awake, alert, and well. Daytime sleepiness may be common, but it is not something you have to accept as normal.
(References)
* Koo, D. L., Lim, L. L., & Lee, H. B. (2018). Excessive Daytime Sleepiness in Women. Sleep Medicine Clinics, 13(3), 329–339.
* Dauvilliers, Y., Ambati, K. R., & Plazzi, G. (2020). Sex differences in narcolepsy: symptoms, comorbidities, and treatment. Current Opinion in Neurology, 33(4), 481–488.
* Anderson, V. (2020). Idiopathic hypersomnia: aetiology, diagnosis and current management. Journal of Thoracic Disease, 12(Suppl 1), S40–S50.
* Pusalavidyasagar, S., & Rosen, I. M. (2022). Sleep Apnea in Women: Underrecognized and Undertreated. Chest, 161(2), 527–538.
* Baker, F. C., & Lee, K. A. (2020). Sleep, Sleep Disorders, and the Menopause Transition. Sleep Medicine Clinics, 15(2), 239–254.
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