Sleep Problems: Disorders, Symptoms & Treatments
Approximately 70 million Americans live with a chronic sleep disorder. Many go undiagnosed for years. Understanding what's actually happening — and when to seek professional help — is the first step.
Sleep Problems vs. Poor Sleep Habits
Not every case of poor sleep is a sleep disorder. Many people sleep poorly primarily because of behavioral, environmental, or lifestyle factors — and for these cases, our Sleep Better section addresses the core interventions.
Sleep disorders are conditions where the sleep problem:
- Persists despite good sleep hygiene practices
- Has a physiological mechanism (neurological, respiratory, or anatomical) underlying it
- Causes significant daytime impairment, health consequences, or safety risks
- Requires professional evaluation and, in most cases, professional treatment
If you've tried consistent behavioral improvements for 4+ weeks without meaningful improvement, and sleep problems continue to impact your daily functioning, seeking a professional evaluation is the appropriate next step.
Common Sleep Disorders
Insomnia
The most common sleep disorder — difficulty falling or staying asleep, despite adequate opportunity. Covers acute vs. chronic, CBT-I, sleep restriction therapy, and when medication is appropriate.
Read full guide →Sleep Apnea
Obstructive, central, and complex types. Symptoms, diagnosis (home test vs. polysomnography), and treatments including CPAP, oral appliances, and surgery.
Read full guide →Snoring
Causes, when snoring is harmless vs. a red flag for apnea, and practical solutions from nasal strips to oral appliances to positional therapy.
Read full guide →Restless Legs Syndrome
Diagnostic criteria, the iron-dopamine connection, common medication triggers, and both medical and lifestyle treatments including the augmentation risk of dopamine agonists.
Read full guide →Parasomnias
Sleepwalking, night terrors, nightmares, confusional arousals, REM behavior disorder, and sleep talking — what they are, why they happen, and when to seek help.
Read full guide →Sleep Paralysis
Why it happens, the hallucinations it can cause, cultural interpretations, triggers, and how to reduce episodes — with honest notes on what helps during an episode.
Read full guide →Narcolepsy
Type 1 vs. type 2, hypocretin deficiency, cataplexy, diagnosis with MSLT, and current treatments including modafinil, sodium oxybate, and pitolisant.
Read full guide →Circadian Rhythm Disorders
Delayed Sleep Phase, Advanced Sleep Phase, non-24-hour disorder, shift work sleep disorder, and jet lag — mechanisms, risks, and treatment including light therapy.
Read full guide →When to See a Doctor About Your Sleep
Seek professional evaluation if any of the following apply:
- You consistently fall asleep uncontrollably during the day (beyond normal tiredness)
- Your partner reports you stop breathing, gasp, or choke during sleep
- You have witnessed or been told about abnormal behaviors during sleep (sleepwalking, acting out dreams)
- You experience irresistible urges to move your legs that worsen at rest and are worse at night
- You've experienced sleep paralysis with hallucinations more than a few times
- Insomnia has persisted for more than 3 months despite behavioral interventions
- Fatigue or cognitive impairment from poor sleep is affecting work, relationships, or safety (particularly driving)
Your primary care physician can conduct an initial evaluation. Specialists (sleep medicine physicians, neurologists, pulmonologists, and ENT surgeons) may be involved depending on the suspected condition. A sleep study (polysomnography) may be ordered for diagnosis of conditions like sleep apnea, narcolepsy, or REM behavior disorder.