Quick Answer
Hypnic headache wakes you from sleep at the same time — typically in older adults. It's rare, benign and responds well to lithium or indomethacin.
Medically reviewed by Dr. Jitendra Prasad Yadav • NMC 8029 • Kathmandu Neurology Clinic & Cognitive Center
Hypnic headache is a rare primary headache disorder characterized by attacks that occur exclusively during sleep, waking the patient — typically at the same time each night ('alarm-clock headache'). It primarily affects people over 50 and is more common in women. Despite being rare, it's important to recognize because it has specific, effective treatments.
Diagnostic criteria
Headache developing only during sleep, waking the patient, occurring ≥10 days/month for >3 months, lasting 15 minutes to 4 hours after waking, not better accounted for by another disorder. Usually bilateral, mild-moderate intensity, without nausea or photophobia/phonophobia.
Differentiation from other sleep headaches
Must exclude: sleep apnea (check for snoring, witnessed apneas), medication-overuse headache, cluster headache (severe, autonomic features), and secondary causes (mass lesion, CSF leak). Polysomnography may be needed to exclude sleep disorders.
Treatment
Lithium carbonate: effective in most patients — requires monitoring for toxicity. Indomethacin: effective alternative. Caffeine before bed: simple, effective for some. Melatonin: helpful adjunct. The response to treatment is typically rapid and dramatic — distinguishing it from other headache types.
When to seek professional evaluation
Hypnic headache is rare but highly treatable — recognition prevents unnecessary extensive workup for a benign condition.
This guide is educational and does not replace individual medical advice.
Frequently asked questions
Answers reviewed by Dr. Jitendra Prasad Yadav • MBBS, MD (Internal Medicine), FICN (Neurology), FCNV, FIHM • NMC 8029
Frequency may improve with systematic evaluation of types, contributors, and individualized planning, but outcomes vary.
Using pain medication on 10+ days per month can trigger daily headache. Reduction or cessation under medical supervision may help break this cycle.
Migraine is a neurological condition; headache is one feature. Associated symptoms and functional impact are important for diagnosis.
Aura refers to visual, sensory, or speech symptoms that precede the headache in some people. Both types are migraine; the presence of aura may influence management discussion.
Migraine typically presents as moderate-severe throbbing headache with nausea and/or sensitivity to light or sound, worsened by routine activity. Duration 4–72 hours. Dr. Jitendra Prasad Yadav (NMC 8029) uses ICHD-3 criteria plus your headache diary (frequency, aura, medication days) and red-flag screen to distinguish …
Stress does not cause migraine alone but lowers threshold and increases frequency, especially with irregular sleep and frequent analgesic use. Dr. Jitendra's approach: diary for frequency/medication days, sleep regularity, hydration, caffeine review, and comorbidity screening (anxiety, insomnia, neck pain). The clinic …
More: All FAQs → · Ask Dr. Jitendra →
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References & Review
Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
- International Classification of Headache Disorders, 3rd edition (ICHD-3).
- Harrison's Principles of Internal Medicine — Neurology sections.
- American Academy of Neurology guidelines for selected conditions (where applicable).
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.