Insomnia & Sleep Disorder Treatment in Tokyo – English-Speaking Clinic
Are you lying awake at night, unable to fall asleep despite feeling exhausted? Do you wake up at 3 a.m. and stare at the ceiling for hours? You are not alone — and this is not something you need to endure. Sleep disorders affect millions of people globally, and Japan has the dubious distinction of having some of the shortest average sleep times in the developed world. At Tokyo Hub Clinic, located in the Hotel New Otani Garden Court, Dr. Ichiro Kamoshita provides comprehensive sleep disorder treatment entirely in English. Whether you are dealing with chronic insomnia, stress-related sleep disruption, or circadian rhythm issues, we can help you reclaim restful, restorative sleep.
Last updated: March 2026. Content supervised by medical professionals at Tokyo Hub Clinic.
Japan’s Sleep Crisis — and Why It Matters for You
Japan consistently ranks among the most sleep-deprived nations on Earth. According to OECD data, the average Japanese adult sleeps just 7 hours and 22 minutes per night — the lowest among all surveyed countries. The culture of long working hours, late-night socializing, and the pervasive “ganbaru” (persevere) mentality often treats sleep as an expendable luxury rather than a biological necessity.
For international residents, this cultural context can be particularly harmful. You may find yourself adapting to a work schedule that leaves little room for adequate sleep, or struggling with the effects of jet lag and time zone differences that disrupt your body clock. The stress of expatriate life — navigating a new culture, managing language barriers, being separated from your support network — adds another layer of sleep-disrupting anxiety.
The consequences of chronic sleep deprivation extend far beyond feeling tired. Poor sleep is linked to depression, anxiety, cardiovascular disease, weakened immunity, weight gain, impaired cognitive function, and increased accident risk. If you have been telling yourself “I’ll sleep when things calm down,” the reality is that untreated sleep disorders tend to worsen, not improve, on their own.
Types of Sleep Disorders We Treat
Sleep disorders come in many forms. Do you recognize your experience in any of the following?
- Sleep-onset insomnia: Difficulty falling asleep — lying in bed for 30 minutes or more before sleep comes
- Sleep-maintenance insomnia: Waking up multiple times during the night and struggling to fall back asleep
- Early morning awakening: Waking up hours before your alarm and being unable to return to sleep
- Non-restorative sleep: Sleeping for adequate hours but waking up feeling unrefreshed
- Circadian rhythm disruption: Your sleep schedule is misaligned with your work/life demands — common after international relocation
- Stress-related sleep disturbance: Racing thoughts, worry, or physical tension preventing sleep
- Daytime excessive sleepiness: Struggling to stay awake during the day despite sleeping at night
- Sleep anxiety: Dreading bedtime because you expect not to sleep — creating a self-fulfilling cycle
- Dependency on sleep aids: Relying on alcohol, over-the-counter medications, or supplements to fall asleep
- Hypersomnia: Sleeping excessively (10+ hours) but still feeling fatigued, often linked to depression
What We Can Do for You at Tokyo Hub Clinic
Dr. Ichiro Kamoshita, M.D., Ph.D., approaches sleep disorders through the lens of psychosomatic medicine — recognizing that sleep problems are rarely just about sleep. They are almost always connected to underlying physical health, mental health, lifestyle factors, or a combination of all three. This integrated perspective is what makes treatment at Tokyo Hub Clinic different from simply being handed a prescription for sleeping pills.
Your initial consultation is thorough and methodical. Dr. Kamoshita will explore your complete sleep history: when your problems started, what your typical night looks like, your bedtime routines, your caffeine and alcohol intake, your exercise habits, your work schedule, your stress levels, and your emotional state. He will also assess for conditions that frequently coexist with insomnia — depression, anxiety, chronic pain, and medical issues such as thyroid disorders or sleep apnea.
This comprehensive approach matters because treating the symptom (insomnia) without addressing the cause (anxiety, depression, lifestyle factors) leads to temporary fixes at best. Dr. Kamoshita develops treatment plans that address the root causes of your sleep disorder while providing effective short-term relief so you can start sleeping better right away.
Every consultation is conducted entirely in English. Sleep is intimately connected to your emotional life, your worries, and your daily experiences — and being able to discuss these in your native language ensures nothing important is lost in translation. Dr. Kamoshita understands the specific sleep challenges that face international residents in Japan and tailors his approach accordingly.
How Your Visit Works
Step 1: Book Your Appointment
Schedule online 24/7 or call 03-6261-7070. Our appointment-only system ensures unhurried, private consultations.
Step 2: Initial Sleep Assessment
Your first visit (30–45 minutes) includes a comprehensive sleep history, mental health screening, and physical assessment. If you have been keeping a sleep diary or using a sleep tracking device, bring that data — it provides valuable objective information.
Step 3: Diagnostic Evaluation
Dr. Kamoshita may recommend blood tests (to check thyroid function, iron levels, or other relevant markers) or refer you for a sleep study if conditions like sleep apnea are suspected. Standardized sleep assessment questionnaires help quantify the severity of your insomnia.
Step 4: Personalized Treatment Plan
Based on your evaluation, you receive a customized treatment plan that may combine sleep hygiene optimization, behavioral therapy, medication, and management of any underlying conditions contributing to your insomnia.
Step 5: Follow-Up & Adjustment
Regular follow-ups (typically every 2–4 weeks initially) allow us to monitor your sleep quality, adjust treatment, and ensure sustained improvement. Most patients report meaningful improvement within 2–4 weeks of beginning treatment.
Treatment Options
Tokyo Hub Clinic offers a range of evidence-based treatments for insomnia and sleep disorders. Your treatment plan is individualized based on the type, severity, and underlying causes of your sleep problems.
Sleep Hygiene Optimization: The foundation of any sleep treatment program. This includes establishing a consistent sleep-wake schedule, optimizing your sleep environment (temperature, light, noise), managing screen time, timing exercise and meals appropriately, and reducing caffeine and alcohol intake. Dr. Kamoshita provides specific, practical recommendations tailored to your life in Tokyo — including strategies for managing the bright lights and noise of urban living.
Cognitive Behavioral Therapy for Insomnia (CBT-I): CBT-I is considered the first-line treatment for chronic insomnia by every major medical guideline worldwide. It is more effective than medication in the long term and has no side effects. CBT-I addresses the thoughts and behaviors that perpetuate insomnia: catastrophic thinking about sleep, excessive time in bed, irregular schedules, and conditioned arousal at bedtime. Dr. Kamoshita integrates CBT-I principles into your treatment sessions.
Medication — Including Japan’s Innovative Sleep Medications: When medication is appropriate, Japan offers some of the most advanced sleep pharmacotherapy in the world. Beyond traditional options, two classes of medications developed and widely used in Japan deserve special mention:
- Melatonin receptor agonists (e.g., ramelteon): These medications work with your body’s natural sleep-wake cycle by targeting melatonin receptors. They are non-habit-forming, have minimal next-day drowsiness, and are particularly effective for sleep-onset insomnia and circadian rhythm disruption.
- Orexin receptor antagonists (e.g., suvorexant, lemborexant): These represent a breakthrough in sleep medicine. Developed from research pioneered in Japan, they work by blocking the orexin (hypocretin) system that keeps you awake, rather than sedating the brain. They help with both falling asleep and staying asleep, with a favorable safety profile and low risk of dependence.
Dr. Kamoshita carefully selects medications based on your specific sleep pattern and avoids benzodiazepine-based sleep aids whenever possible due to their dependence potential and impact on sleep architecture.
Treating Underlying Conditions: When insomnia is driven by depression, anxiety, chronic pain, or other medical conditions, treating the root cause is essential. Dr. Kamoshita’s psychosomatic medicine expertise allows him to identify and address these contributing factors as part of your sleep treatment plan.
For International Residents in Japan
If you have been struggling with sleep since moving to Japan, you are far from alone. Time zone adjustment, the stress of relocation, and the demands of adapting to a new culture all take a toll on sleep quality. Many expatriates develop chronic insomnia that they would not have experienced at home.
Sleep disorder treatment is fully covered under Japan’s National Health Insurance (NHI) system. With NHI or Shakai Hoken, you pay only 30% of consultation and medication costs. This includes the innovative medications mentioned above, which may not be available or may be prohibitively expensive in other countries.
Do not accept poor sleep as “just part of living in Japan.” Effective treatment is available, affordable, and accessible in English at Tokyo Hub Clinic. Dr. Kamoshita understands the specific sleep challenges facing international residents and provides care that addresses your unique situation — not generic advice from a textbook.
Insurance & Fees
Tokyo Hub Clinic accepts Japan’s National Health Insurance (NHI), Social Insurance (Shakai Hoken), and most international travel insurance plans.
- First visit: approximately ¥10,000–¥15,000 (with NHI: approximately ¥3,000–¥4,500)
- Follow-up visits: approximately ¥5,000–¥8,000 (with NHI: approximately ¥1,500–¥2,400)
- Sleep medications covered at 30% with NHI
- English-language receipts and medical documentation provided for insurance claims
Frequently Asked Questions
How much sleep do I actually need?
Most adults need 7–9 hours of sleep per night for optimal health and functioning. However, the quality of sleep matters as much as the quantity. If you sleep 7 hours but wake up feeling unrefreshed, that is a sign of a sleep quality issue that should be addressed. Dr. Kamoshita can help determine whether your sleep duration, quality, or both need improvement.
Are sleeping pills safe for long-term use?
It depends on the medication. Traditional benzodiazepine-based sleep aids are generally not recommended for long-term use due to dependence risk and negative effects on sleep quality. However, newer medications available in Japan — melatonin receptor agonists and orexin receptor antagonists — have much more favorable long-term safety profiles. Dr. Kamoshita will recommend the most appropriate medication for your situation and monitor you carefully. The goal is always to address the underlying cause of insomnia so that medication can eventually be reduced or discontinued.
I have tried melatonin supplements but they do not work. Can you help?
Over-the-counter melatonin supplements (which are actually prescription-only in Japan) have limited evidence for most types of insomnia. The prescription melatonin receptor agonist ramelteon works differently — it targets melatonin receptors more specifically and effectively than supplemental melatonin. Additionally, if melatonin does not work for you, it suggests your insomnia may be driven by factors other than circadian rhythm disruption, which requires a different treatment approach. Dr. Kamoshita will identify the specific type of insomnia you have and recommend the most effective treatment.
Can stress really cause physical insomnia?
Absolutely. Stress activates your sympathetic nervous system — the “fight or flight” response — which increases heart rate, muscle tension, and cortisol production. These physiological changes directly oppose the conditions needed for sleep. Over time, the bedroom itself can become associated with wakefulness and frustration, creating a conditioned arousal response that perpetuates insomnia even after the original stressor is resolved. This is exactly the kind of mind-body connection that psychosomatic medicine is designed to treat.
Should I try to “tough it out” or see a doctor for sleep problems?
If you have experienced poor sleep for more than a few weeks, and it is affecting your daytime functioning, mood, or health, it is time to seek professional help. Chronic insomnia rarely resolves on its own and tends to worsen over time as negative sleep habits become entrenched. Early treatment is both more effective and prevents the cascade of health consequences that follow prolonged sleep deprivation. There is no virtue in suffering through sleepless nights when effective, evidence-based treatment is available.
Book Your Appointment
Or call us directly: 03-6261-7070
Tokyo Hub Clinic — Hotel New Otani Garden Court 2F, 4-1 Kioi-cho, Chiyoda-ku, Tokyo
2-minute walk from Akasaka-mitsuke Station / Nagatacho Station
Related Pages
- Psychosomatic Medicine in Tokyo
- Depression Treatment in Tokyo
- Anxiety & Panic Disorder Treatment in Tokyo
- Burnout & Chronic Fatigue Treatment in Tokyo