Poor sleep in women: causes and how to sleep better
Why women struggle with sleep, how hormones and night sweats can contribute, which habits help, and when persistent insomnia needs assessment.
Written and evidence-checked by the VeriNourish Editorial Team against 6 named sources listed below. No licensed clinician reviews this content.
Poor sleep can mean trouble falling asleep, repeated waking, waking too early, or feeling tired despite enough time in bed. Hormonal changes can contribute, especially around menopause, but stress, restless legs, sleep apnea, pain, medicines and daily habits also belong on the list. The pattern tells you whether to adjust your routine or seek an assessment.
Why sleep suffers in women
Several causes can overlap, so start with the pattern of your symptoms.
- Hormones and life stage. Sleep problems can occur during pregnancy and around perimenopause or menopause. Night sweats can interrupt sleep directly (NHS).
- Stress and an overactive mind. Stress, anxiety and depression are common causes of insomnia. A racing mind can make it harder to fall asleep or return to sleep after waking (NHS).
- Restless legs. An urge to move your legs at night can be linked to low iron and is easy to miss as a cause of broken sleep. Iron is not always the whole answer: in one small study of 39 women with restless legs and low ferritin, 38.5% were in remission after their iron levels normalized, while the rest still had symptoms (Psychiatry Investigation, 2018).
- Everyday contributors. Caffeine and alcohol, irregular schedules, late screens, a warm bedroom and conditions like sleep apnea all undermine sleep.
Start with the sleep habits that help
The NHS recommends practical sleep changes first for many people with insomnia. Cognitive behavioral therapy for insomnia, or CBT-I, is a structured treatment that also addresses the thoughts and behaviors that keep sleep problems going. It is more than a checklist of sleep hygiene, and NHS sleep services use it as a first-line treatment for persistent insomnia (UCLH).
- Keep bed and wake times steady, even at weekends. A regular wake time anchors the whole rhythm.
- Go to bed when sleepy. If you are lying awake and becoming frustrated, get up, do something calm in dim light, and return when sleepy.
- Wind down for 30 to 60 minutes without bright screens or work.
- Get daylight early. Morning light sets your body clock and helps you feel sleepy at night.
- Keep the bedroom cool, dark and quiet, which matters doubly if you get night sweats.
What fuels wakefulness
Alongside the routine, trim the things that quietly keep you alert.
| Habit | Why it disrupts sleep |
|---|---|
| Afternoon or evening caffeine | It lingers for hours and delays deep sleep |
| Alcohol before bed | It helps you drop off but fragments the second half of the night |
| Large late meals | Digestion and reflux can keep you awake |
| Late screens | Bright light and stimulation push back your body clock |
| Long or late naps | They reduce your drive to sleep at night |
Can supplements fix poor sleep?
Magnesium is often marketed for sleep, but evidence is limited. One 2025 randomized trial in 155 adults with self-reported poor sleep found a small improvement in insomnia severity after four weeks of magnesium bisglycinate (Nature and Science of Sleep, 2025). It did not establish magnesium as a treatment for chronic insomnia or prove that glycinate is the best form.
Do not use a supplement to explain repeated early waking without considering stress, alcohol, pain, reflux, menopause symptoms, sleep apnea or another cause. The NHS notes that pharmacy sleep aids do not cure insomnia and should not be used for longer than one to two weeks (NHS).
When it is more than habits
If a solid routine does not help after a few weeks, look for an underlying cause rather than pushing through.
- Sleep apnea shows up as loud snoring, gasping or pauses in breathing, and daytime sleepiness. It is treatable and worth diagnosing.
- Restless legs that keep you awake are worth discussing with a clinician. Low iron may contribute, so a ferritin test may be appropriate, but correcting iron does not resolve every case.
- An overactive thyroid can contribute to insomnia, so a thyroid check may be appropriate when other symptoms fit.
- Menopausal sweats that wake you repeatedly can be treated. Ask about options, including whether HRT is suitable for you.
- Low mood or anxiety and poor sleep feed each other, and both deserve support together.
Persistent poor sleep also drives daytime fatigue and low energy, so fixing it often lifts more than the nights.
When to see a doctor
See a doctor if changing your sleep habits has not helped, if poor sleep has lasted for months, or if it affects daily life. Seek an assessment sooner if you snore heavily or wake gasping, have crawling or restless legs at night, or poor sleep comes with low mood or daytime exhaustion that makes it hard to cope. Persistent insomnia is treatable.
Frequently asked questions
Why do women struggle with sleep more than men?
Women can face sleep disruption during pregnancy and around perimenopause or menopause, when night sweats may cause repeated waking. Stress, anxiety, restless legs, sleep apnea, pain, medicines and daily habits can also contribute, so sex hormones should not be assumed to explain every sleep problem.
Does menopause affect sleep?
Yes. Difficulty getting to sleep or staying asleep can occur during perimenopause and menopause, and night sweats may make it worse. A steady routine may help, while repeated waking from night sweats is a reason to discuss menopause treatment options with a clinician.
Does magnesium help sleep?
Evidence is limited. One 2025 trial found a small improvement in insomnia severity after four weeks of magnesium bisglycinate, but broader reviews have found inconsistent results. Magnesium is not a proven treatment for chronic insomnia, and the glycinate form has not been shown to work best for everyone.
How many hours of sleep do women need?
Most adults need around 7 to 9 hours, though the right amount varies. What matters as much as the number is quality and consistency. If you regularly wake unrefreshed despite enough time in bed, that is worth looking into rather than simply spending longer in bed.
When should I see a doctor about sleep?
See a doctor if poor sleep persists despite good habits, if you snore heavily or wake gasping, which can signal sleep apnea, if you have crawling, restless legs at night, or if poor sleep comes with low mood or daytime exhaustion that affects your life.
References
- Symptom persistence after iron normalization in women with restless legs syndrome · Psychiatry Investigation, 2018
- About Sleep · CDC
- Insomnia · NHS
- Menopause: Symptoms · NHS
- Insomnia and Sleep Medicine Clinic · University College London Hospitals NHS Foundation Trust
- Magnesium bisglycinate supplementation in healthy adults reporting poor sleep · Nature and Science of Sleep, 2025