Restless Legs Syndrome (RLS): Causes, Treatments & Natural Remedies That Work

What Is Restless Legs Syndrome?

Restless Legs Syndrome (RLS), also known as Willis-Ekbom Disease, is a neurological condition that causes an uncontrollable urge to move your legs, usually accompanied by uncomfortable sensations. The NHS estimates that around 1 in 10 UK adults experiences RLS symptoms at some point in their lives, with moderate-to-severe cases affecting roughly 2–3% of the population [1].

The sensation is notoriously difficult to describe — patients often use words like crawling, creeping, tingling, pulling, or itching deep inside the legs. It's not pain exactly, but an intense discomfort that only goes away when you move. And crucially, it gets worse in the evening and at night, making it a leading cause of sleep disruption that often goes unrecognised.

"I spent three years thinking I was just restless at night before a GP finally diagnosed me," is a common story in RLS support groups. A 2024 study in Sleep Medicine Reviews found that the average time from symptom onset to diagnosis is 5–7 years [2]. Many people are told it's "just stress" or "poor sleep habits," when in fact they have a well-understood neurological condition with effective treatment options.

The 4 Essential Diagnostic Criteria for RLS

Diagnosing RLS isn't always straightforward because there's no single test — it's based on your symptom history. According to the International Restless Legs Syndrome Study Group (IRLSSG), you need all four of these to meet the diagnostic threshold [3]:

1. An urge to move the legs, usually accompanied by uncomfortable or unpleasant sensations in the legs.
2. Symptoms begin or worsen during rest or inactivity — sitting, lying down, or even standing still. They're typically absent during movement.
3. Symptoms are partially or totally relieved by movement — walking, stretching, shaking the legs, or changing position. Relief lasts as long as you keep moving.
4. Symptoms are worse in the evening or at night than during the day, or only occur in the evening/night. This circadian pattern is a hallmark of RLS.

If this sounds familiar, it's worth booking an appointment with your GP. While there's no cure, treatment can dramatically improve both symptoms and sleep quality.

What Causes Restless Legs Syndrome?

RLS is divided into two types: primary (idiopathic), where no underlying cause is found, and secondary, where an identifiable condition triggers it. About 60% of cases are primary, often with a strong genetic component — if a parent has RLS, your risk is 3–6 times higher [4].

Primary (Genetic) RLS

Several gene variants have been linked to RLS, particularly those involved in iron metabolism and dopamine regulation. A 2018 genome-wide association study identified 19 genetic loci associated with RLS risk [5]. If you developed symptoms before age 45, you're more likely to have the genetic form, and first-degree relatives have a significantly higher risk.

Secondary RLS — Treatable Triggers

Secondary RLS is crucial to identify because treating the underlying cause can resolve the symptoms entirely. Common triggers include:

• Iron deficiency — The single most common treatable cause. Low ferritin (stored iron) levels, even within the "normal" range, can trigger RLS. The 2025 American Academy of Sleep Medicine (AASM) guidelines now recommend treating iron deficiency as first-line therapy before any medication [6].
• Chronic kidney disease — Up to 25–50% of dialysis patients experience RLS symptoms due to iron and mineral imbalances.
• Pregnancy — About 20–25% of pregnant women develop RLS, particularly in the third trimester. Symptoms typically resolve within weeks of delivery. See our pregnancy sleep guide.
• Certain medications — Antidepressants (SSRIs), antihistamines (especially older ones like diphenhydramine), and some antipsychotics can trigger or worsen RLS.
• Neurological conditions — Parkinson's disease and peripheral neuropathy have higher rates of co-occurring RLS.
• Caffeine, alcohol, and nicotine — All three can exacerbate symptoms, especially when consumed in the evening.

How RLS Disrupts Sleep

The circadian nature of RLS — worsening at night — makes it a direct and powerful sleep disruptor. The urge to move strikes precisely when you're trying to settle into bed. A 2023 study in Sleep found that people with moderate-to-severe RLS experienced:

• 45–60 minutes longer to fall asleep compared to controls
• 2–3 times more nighttime awakenings
• 30% less total sleep time on average
• Significantly reduced slow-wave (deep) sleep quality [7]

The sleep disruption from RLS creates a vicious cycle: poor sleep increases stress and fatigue, which in turn can worsen RLS symptoms. This is why treating RLS often produces dramatic improvements in both sleep and daytime quality of life — sometimes within days of starting effective treatment.

Many people with RLS also experience Periodic Limb Movements of Sleep (PLMS) — involuntary leg twitching or kicking during sleep that they're unaware of but that repeatedly disrupts sleep architecture. A partner may notice the blankets being kicked or pulled throughout the night.

Medical Treatments Available on the NHS

If you suspect RLS, start with your GP. The NHS recommends several treatment pathways depending on severity and underlying causes [8]:

1. Iron Supplementation (First-Line)

The 2025 AASM clinical practice guideline made a landmark change: intravenous iron is now recommended as the preferred first-line treatment for adults with RLS and low iron stores [6]. For milder cases, oral iron supplements (ferrous sulphate 200mg daily) may be sufficient. A simple blood test for serum ferritin can determine whether your iron levels are adequate — and many people with RLS are surprised to find their iron is low even when they feel healthy.

Important: Don't start iron supplements without a blood test first. Excess iron is stored in your organs and can cause long-term damage. Your GP can test your ferritin levels on the NHS and advise the right dose.

2. Lifestyle and Non-Drug Approaches (Always Recommended)

These are the first things to try, and they work for many mild-to-moderate cases:

• Moderate exercise — Regular daytime walking, swimming, or cycling reduces symptom severity. A 2022 meta-analysis found that aerobic exercise decreased RLS severity scores by an average of 25% [9].
• Avoid triggers — Cut caffeine after midday, limit alcohol to 2–3 hours before bed, and quit smoking if applicable.
• Leg stretches and massage — A 10-minute stretching routine before bed can significantly reduce nighttime symptoms.
• Warm baths — Soaking in warm water 30–60 minutes before bed relaxes muscles and may reduce the urge to move.
• Temperature management — Keeping the bedroom cool (65–68°F / 18–20°C) can help. See our bedroom temperature guide.

3. Medications (When Lifestyle Changes Aren't Enough)

If symptoms persist despite iron optimisation and lifestyle changes, your GP may prescribe:

• Gabapentin or pregabalin — These are now considered the preferred pharmacological treatment for most patients. They reduce the sensory symptoms and improve sleep quality without the side effects associated with dopamine drugs.
• Dopamine agonists (ropinirole, pramipexole) — These were previously first-line but are now used more cautiously due to a significant risk of augmentation (symptoms worsening and spreading to other body parts over time).
• Benzodiazepines (clonazepam) — Sometimes used short-term to improve sleep, but not recommended long-term due to dependency risk.
• Opioids (codeine, tramadol) — Reserved for severe, treatment-resistant cases under specialist supervision.

Natural Remedies and Self-Management That Work

Alongside medical treatment, many people find significant relief from these evidence-backed approaches:

Weighted Blankets

Weighted blankets have emerged as one of the most effective non-drug interventions for RLS. The deep pressure stimulation (also used in sensory integration therapy) appears to calm the nervous system and reduce the urge to move. A 2023 randomised controlled trial in Journal of Clinical Sleep Medicine found that weighted blankets reduced periodic limb movements by 40% and improved sleep efficiency by 12% in RLS patients [11].

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For RLS specifically, choose a weighted blanket that's 10–12% of your body weight. Our guide to the best weighted blankets in the UK covers the top options, including cooling-weighted blankets that are ideal for summer use.

Magnesium

Magnesium plays a role in nerve function and muscle relaxation. While clinical evidence is mixed — some studies show benefit, others show no significant difference — many RLS patients report noticeable relief from magnesium supplementation, particularly magnesium glycinate taken before bed [12]. Topical magnesium sprays or creams applied directly to the legs are also popular in RLS communities.

Recommended dose: 200–400mg magnesium glycinate, 30–60 minutes before bed. Avoid magnesium citrate in the evening as it can cause digestive upset.

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Compression Socks and Leg Massage

Graduated compression socks (15–20mmHg) worn during the day can reduce RLS symptoms by improving circulation and providing constant sensory input. A small 2020 study found that compression therapy reduced RLS severity scores by 33% [13].

Combining compression with self-massage — using a foam roller, massage gun, or simply your hands — on the calves, shins, and thighs before bed can provide additional relief. Many RLS patients keep a small massage tool next to their bed for middle-of-the-night use.

Iron-Rich Foods

Even without diagnosed deficiency, increasing dietary iron may help. The best sources are easily absorbed (haem iron from animal sources):

• Red meat (beef, lamb) — one of the most bioavailable sources
• Dark leafy greens (spinach, kale) — pair with vitamin C (e.g., lemon juice) to boost absorption
• Legumes (lentils, chickpeas) and fortified cereals
• Pumpkin seeds and dried apricots

Avoid drinking tea or coffee with iron-rich meals — the tannins significantly reduce absorption. Vitamin C (a glass of orange juice, or squeezing lemon over greens) more than doubles iron absorption [14]. See our guide to sleep-promoting foods for more nutritional tips.

Temperature Regulation

Heat can trigger RLS symptoms in some people. Keeping your bedroom cool, using cooling bedding, and wearing breathable pyjamas can help. We cover the best options in our cooling sheets guide and best fans for sleeping guide.

Avoiding Triggers

This can't be overstated — many people dramatically improve just by eliminating evening triggers:

• Caffeine: Cut off by 12pm. Even a late-afternoon coffee can trigger nighttime symptoms.
• Alcohol: Worsens RLS in about 30% of people and severely disrupts sleep architecture. See our alcohol and sleep guide.
• Nicotine: A powerful stimulant that can trigger or worsen RLS.
• SSRI antidepressants: If you started RLS symptoms around the same time as a new antidepressant, talk to your GP about alternatives like bupropion, which has a lower RLS risk.

RLS and Sleep Hygiene

Good sleep hygiene is particularly important for RLS because your sleep-wake cycle directly influences symptom severity. A consistent bedtime routine that incorporates RLS-specific strategies can make a significant difference:

1. Same bedtime, same wake time — even on weekends. Irregular sleep schedules worsen RLS symptoms.
2. Pre-bed stretching routine — 10 minutes of gentle calf and hamstring stretches before getting into bed.
3. Cool bedroom — keep the room temperature between 18–20°C.
4. Warm bath — 20-minute soak 60–90 minutes before bed, then let your core temperature drop.
5. No screens 60 minutes before bed — blue light suppresses melatonin and can make RLS feel worse. See our blue light guide.
6. Keep a distraction nearby — a book, podcast, or audiobook can help you ride out the urge to move without getting frustrated.

For a full practical checklist, see our sleep hygiene checklist.

When to See a Doctor

You should see your GP if RLS symptoms are:

• Affecting your sleep quality most nights
• Causing daytime fatigue, irritability, or difficulty concentrating
• Making it hard to sit through long meetings, car journeys, or flights
• Getting worse over time, or spreading to your arms
• Accompanied by leg swelling, pain, or skin changes (these could indicate a different condition)

Your GP can order a ferritin blood test and rule out other causes like peripheral neuropathy, diabetes, or kidney disease. They can also refer you to a sleep specialist or neurologist if needed. The NHS has dedicated sleep clinics that specialise in movement disorders — don't hesitate to ask for a referral if symptoms are significantly impacting your life.

Living with RLS: Practical Day-to-Day Tips

Beyond treatments, these practical strategies can help you manage RLS in daily life:

• Plan movement breaks — if you have a desk job, stand up and walk around every 30–45 minutes. Even 2 minutes of walking relieves symptoms.
• Evening exercise timing — gentle exercise 2–4 hours before bed can improve sleep without triggering RLS. Avoid intense workouts within 90 minutes of bedtime.
• Travel strategies — on long flights or train journeys, book an aisle seat so you can stand up and stretch easily. Compression socks help during travel, too.
• Talk to your partner — RLS can affect your bed partner's sleep too (especially if you have PLMS). A supportive pillow and a white noise machine can help both of you sleep better.
• Join a support group — RLS-UK offers excellent resources, local support groups, and online forums. Sharing strategies with others who understand can make a real difference to your mental wellbeing.

Frequently Asked Questions

Is restless legs syndrome a serious condition?

RLS itself is not life-threatening, but it can severely impact quality of life through chronic sleep deprivation. Untreated RLS is associated with higher rates of depression, anxiety, cardiovascular issues, and impaired daytime function. The good news is that treatment is highly effective for the vast majority of people.

Can RLS go away on its own?

Primary RLS (genetic) tends to be a lifelong condition, though symptoms may fluctuate in severity. Secondary RLS — caused by pregnancy, iron deficiency, or medication — often resolves once the underlying cause is addressed. Pregnancy-related RLS typically disappears within weeks of giving birth.

Is there a connection between RLS and sleep apnoea?

Some studies suggest a higher prevalence of RLS in people with sleep apnoea, though the relationship isn't fully understood. Both conditions disrupt sleep, and treating sleep apnoea with CPAP may improve RLS symptoms in some patients. See our sleep apnoea guide for more information.

Does exercise help RLS?

Yes — moderate, regular exercise is one of the most effective non-drug interventions. Walking, swimming, cycling, and yoga have all been shown to reduce RLS severity. The key is consistency: aim for 30 minutes of moderate activity most days. However, avoid very intense exercise close to bedtime, as it can temporarily worsen symptoms. See our exercise and sleep guide for optimal timing.

Can children get restless legs syndrome?

Yes — childhood RLS is increasingly recognised. It often presents as "growing pains" or hyperactivity at bedtime. If your child complains of uncomfortable legs at night, has difficulty settling to sleep, or is unusually fidgety, it's worth discussing RLS with your GP. For more on children's sleep issues, see our children's sleep problems guide.

What's the best sleeping position for RLS?

There's no single best position, but many people find that lying on their side with a pillow between their knees helps by reducing nerve compression and maintaining spinal alignment. Our guide to pillows for side sleepers covers supportive options that may help.

Products That Can Help Manage RLS

While these products aren't a cure, many people with RLS find them helpful as part of a broader management plan:

• Weighted blankets — deep pressure stimulation reduces leg movements (best product category for RLS)
• Bedroom fans or cooling devices — keeping cool can reduce symptom flare-ups
• Cooling sheets and bedding — temperature regulation is important
• Supportive pillows — for comfortable side sleeping with knee support
• White noise machines — for both you and your partner to sleep through disturbances
• Sunrise alarm clock — helps stabilise your circadian rhythm with consistent wake times
• Cooling pillows — help regulate head and neck temperature

The Bottom Line

Restless Legs Syndrome is a genuine, well-understood neurological condition that affects millions of UK adults — but it's also one of the most treatable sleep disorders. The diagnostic delay (averaging 5–7 years) means too many people suffer unnecessarily.

The treatment journey is straightforward: start with a blood test for iron status, optimise your sleep hygiene and lifestyle triggers, try non-drug interventions like weighted blankets and stretching, and consult your GP about medication if symptoms persist. The new 2025 guidelines make iron the first-line treatment, which is both safer and more targeted than the dopamine drugs that were previously overprescribed.

If the description of RLS in this article sounds familiar, don't put off seeing your GP. A simple blood test and a few lifestyle changes could transform your sleep quality — and your quality of life.

⚠️ Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. If you have chronic sleep problems or think you may have Restless Legs Syndrome, consult your GP for proper diagnosis and treatment. This is not a substitute for professional medical advice, diagnosis, or treatment.