An uncomfortable, hard-to-describe urge to move the legs, especially in the evening or when trying to fall asleep, is a surprisingly common pregnancy complaint known as restless legs syndrome (RLS). For women over 35 already navigating other pregnancy-related sleep changes, understanding why RLS happens and what may offer relief can be genuinely helpful.
What Research Shows About RLS in Pregnancy
According to information reviewed by the American Sleep Association, restless legs syndrome appears to be more common during pregnancy than in the general population, with symptoms often emerging or worsening in the second and third trimesters and typically resolving within weeks after delivery for most women.
What May Contribute to Pregnancy-Related RLS
Researchers have proposed several contributing factors, including iron and folate status, hormonal changes, and increased blood volume, though the exact mechanism isn’t fully understood. Because iron deficiency is one commonly discussed factor, some women find it useful to also review information on sleep position during pregnancy after 35, since comfortable positioning can also affect leg sensations and overall sleep quality.
Why Symptoms Often Worsen at Night
RLS symptoms characteristically intensify during rest and in the evening, which can make falling asleep more difficult and contribute to a cycle of sleep disruption that compounds pregnancy fatigue.
This nighttime pattern can create a frustrating cycle: fatigue from disrupted sleep may make daytime rest feel more necessary, but daytime inactivity can sometimes make evening symptoms feel more pronounced by comparison. Some women find that staying lightly active during the day, without overexertion, helps break this cycle somewhat, though responses vary and this isn’t a guaranteed fix.
Approaches That May Offer Relief
Some women report that gentle stretching, warm baths, leg massage, and maintaining a regular sleep schedule provide modest relief, though individual results vary considerably and no single approach helps everyone. Reviewing overall sleep hygiene strategies, such as those discussed in magnesium and sleep after 35, may also be a relevant conversation to have with a healthcare provider, since supplement changes during pregnancy should always be discussed first.
When to Talk to Your Provider
Because RLS symptoms can sometimes reflect iron deficiency or other treatable factors, and because certain medications used for RLS outside of pregnancy are not recommended during pregnancy, discussing symptoms with your OB/GYN is an important step rather than self-treating. Bloodwork may be recommended to check iron and ferritin levels.
It’s also worth mentioning RLS symptoms even if they seem mild, since your provider may want to track them alongside other bloodwork already being done at routine prenatal visits, rather than ordering additional tests solely for this purpose. This can make addressing the symptom more efficient and less disruptive to your prenatal care schedule.
Tracking Symptoms to Share With Your Provider
Because RLS symptoms can fluctuate night to night, keeping a brief log of when symptoms occur, how severe they feel, and what seems to help or worsen them can give your provider more useful information than a general description at a single appointment. Noting whether symptoms are worse after certain foods, caffeine intake, or specific times of day can also help identify individual patterns, even though triggers vary considerably from person to person.
Some women also notice a connection between RLS symptoms and overall sleep debt, where symptoms seem to intensify during periods of accumulated poor sleep. Whether this reflects a true physiological relationship or simply increased awareness of symptoms when already fatigued isn’t fully settled in the research, but tracking your own pattern may still offer useful personal insight.
Non-Pharmacological Approaches Worth Discussing
Beyond stretching and warm baths, some women find that compression stockings, a folded pillow between the knees, or brief walks earlier in the evening (rather than right before bed) offer some relief. Reducing caffeine intake, particularly later in the day, is another commonly suggested strategy, though evidence specific to pregnancy-related RLS is limited. As with most pregnancy symptoms, what helps one woman may not help another, and a period of individual trial alongside guidance from your provider is often more productive than searching for a single universal fix.
Frequently Asked Questions
Why does restless legs syndrome happen during pregnancy?
The exact cause isn’t fully understood, but researchers believe iron status, hormonal changes, and increased blood volume may all play a role for some women.
Will restless legs syndrome go away after pregnancy?
For most women, pregnancy-related RLS symptoms improve or resolve within weeks after delivery, though experiences vary.
Is it safe to take medication for RLS during pregnancy?
Many medications used for RLS outside of pregnancy are not recommended during pregnancy. Any treatment should be discussed with and guided by your healthcare provider.
Can iron deficiency cause restless legs syndrome?
Iron deficiency is one factor associated with RLS symptoms in some studies, which is part of why bloodwork may be recommended if symptoms are significant.
Does RLS during pregnancy predict RLS later in life?
Some women who experience RLS during pregnancy do not have symptoms again afterward, while others may notice a recurrence later, including during perimenopause. Current research hasn’t established a clear predictive link either way, and individual patterns vary.
Can restless legs syndrome affect the baby?
RLS itself is not considered directly harmful to the baby, though the sleep disruption it causes can add to overall pregnancy fatigue. Addressing significant sleep loss with your provider is worthwhile for your own wellbeing, even if RLS alone isn’t considered a direct risk to fetal health.
Are compression socks helpful for restless legs syndrome?
Some women report that compression stockings provide mild relief from leg discomfort generally, though evidence specific to RLS symptoms is limited. They are generally low-risk to try, but persistent or worsening symptoms still warrant a conversation with your provider.
Should I mention RLS symptoms even if they’re mild?
Yes, mentioning even mild symptoms at a prenatal visit allows your provider to track them over time and note them in your chart, which can be useful context if symptoms intensify later in pregnancy.
Does caffeine make restless legs syndrome worse during pregnancy?
Some women notice a connection between caffeine intake and symptom severity, though this isn’t universal. Since caffeine intake during pregnancy is already generally moderated based on provider guidance, tracking any personal connection to RLS symptoms may offer an additional reason to stay mindful of intake.
Can stretching before bed help with restless legs syndrome?
Some women find gentle calf and leg stretches before bed provide short-term relief, though the effect tends to be temporary and evidence specific to pregnancy-related RLS is limited. It remains a low-risk option worth trying as part of a broader wind-down routine.
Key Takeaways
- Restless legs syndrome is more common during pregnancy and often improves after delivery.
- Iron status and hormonal changes are among the proposed contributing factors.
- Gentle, non-medication strategies may offer some relief, though evidence and individual results vary.
- Persistent or severe symptoms should be discussed with your healthcare provider, including possible bloodwork.
This content is for informational purposes only and does not constitute medical advice. Individual health situations vary significantly. Always consult a qualified healthcare provider before making decisions related to your health, fertility, or pregnancy.
About the Author
Emily Carter is a women’s health writer focused on fertility, pregnancy after 35, and sleep changes in midlife. She writes research-informed, non-alarmist content to help women navigate reproductive and hormonal transitions with clarity and confidence.