An uncomfortable, hard-to-describe urge to move your legs just as you’re trying to settle down for the night is more than just restlessness. Restless legs syndrome is a recognised condition with identifiable triggers, and understanding it can make the sensation far less frustrating.
Quick Answer
Restless legs at night are most often linked to iron deficiency, poor sleep habits, pregnancy, or certain medications. The condition, known as restless legs syndrome, causes an urge to move the legs that temporarily eases with movement.
What Restless Legs Syndrome Feels Like
People typically describe it as a crawling, tingling, pulling, or itching sensation deep in the legs, along with an almost irresistible urge to move them. Symptoms are usually worse in the evening and at rest, and temporarily ease with movement.
Common Causes and Triggers
Iron Deficiency
Low iron levels, even without full-blown anaemia, are strongly linked to restless legs syndrome, since iron plays a role in dopamine function in the brain.
Genetics
Restless legs syndrome often runs in families, suggesting a genetic component, particularly in cases that begin earlier in life.
Pregnancy
Restless legs syndrome is common during pregnancy, particularly in the third trimester, and usually resolves after delivery.
Certain Medications
Some antihistamines, antidepressants, and anti-nausea medications are associated with triggering or worsening restless legs symptoms.
Chronic Conditions
Kidney disease, diabetes, and peripheral neuropathy are all associated with a higher likelihood of restless legs syndrome.
Caffeine and Alcohol
Both can worsen symptoms for many people, particularly when consumed later in the day or close to bedtime.
Sleep Deprivation
Poor or insufficient sleep can worsen restless legs symptoms, creating a difficult cycle where the condition itself also disrupts sleep.
How to Manage Restless Legs
- Have your iron levels checked, since supplementation can significantly help if levels are low
- Maintain a consistent sleep schedule
- Limit caffeine and alcohol, particularly in the evening
- Try gentle stretching or a warm bath before bed
- Stay physically active during the day, though avoid vigorous exercise close to bedtime
- Massage the legs when symptoms flare up
When to See a Doctor
- Symptoms significantly disrupt your sleep on a regular basis
- They’re affecting your mood or daily functioning
- Symptoms started after a new medication
- You suspect an underlying condition like iron deficiency or kidney issues
A simple blood test can check iron levels, and several effective treatments are available for more persistent cases.
FAQs
Is restless legs syndrome a real medical condition?
Yes. It’s a recognised neurological condition with well-documented triggers and effective treatment options, not simply a case of being unable to relax.
Does restless legs syndrome only happen at night?
It’s most common in the evening and at rest, but some people also experience symptoms during the day, particularly during long periods of sitting.
Can iron supplements really help?
Yes, for people with low iron levels, supplementation often meaningfully reduces symptoms, though it should be guided by a blood test rather than started blindly.
Conclusion
Restless legs at night are usually linked to iron levels, genetics, or lifestyle factors, and respond well to targeted management once the cause is identified. Symptoms that regularly disrupt sleep are worth discussing with a doctor, since effective treatments are available.
Last reviewed: August 2026. This article is for general information only and does not replace professional medical advice. If symptoms disrupt sleep regularly, please speak to a GP.
