Sleep Disorders: Types, Symptoms and What Helps

Sleep is not a luxury. During sleep, the brain clears waste, memories are consolidated, hormones are regulated, and the body repairs itself. Chronic poor sleep raises the risk of high blood pressure, diabetes, obesity, heart disease, depression, accidents, and weakened immunity.

Surveys suggest that a large share of urban Indians sleep less than they should, and many have a true sleep disorder that goes undiagnosed. People often accept snoring, tiredness, or night-time restlessness as normal. They are not.

How Much Sleep Do We Need?

• Adults: seven to nine hours
• Teenagers: eight to ten hours
• Older adults: seven to eight hours, often more broken

Quality matters as much as quantity. Sleep that is fragmented or shallow leaves you tired even after eight hours in bed.

Signs You May Have a Sleep Disorder

• Difficulty falling or staying asleep on most nights
• Loud, habitual snoring or gasping during sleep
• Waking unrefreshed despite a full night in bed
• Excessive daytime sleepiness, or dozing off at work or while driving
• Morning headaches
• Irritability, poor concentration, or memory problems
• Uncomfortable urges to move your legs at night
• Unusual behaviours during sleep, such as sleepwalking, talking, or acting out dreams
• Falling asleep at unusual times

Major Types of Sleep Disorders

1. Insomnia

Difficulty falling asleep, staying asleep, or waking too early, with daytime consequences. It may be short-term (triggered by stress, travel, or illness) or chronic (three or more nights a week for three months or more). Causes include stress, anxiety, depression, caffeine, screens, irregular schedules, pain, and medical conditions. See our separate blog on insomnia causes.

2. Obstructive sleep apnoea (OSA)

The throat muscles relax during sleep and partially or fully block breathing, many times a night. The brain briefly wakes to restart breathing, usually without the person remembering.

Symptoms:

• Loud snoring, often with pauses and gasps
• Waking with a dry mouth or sore throat
• Morning headaches
• Heavy daytime sleepiness
• Poor concentration and mood changes
• Waking to urinate frequently at night
• In men, reduced libido and erectile problems

Risk factors: obesity, a thick neck, large tonsils, nasal blockage, older age, male sex, alcohol before bed, sedative use, and family history. Thin people can also have it.

Why it matters: untreated sleep apnoea is linked to hypertension, heart rhythm problems, heart attack, stroke, type 2 diabetes, and road accidents.

Diagnosis: a sleep study (polysomnography), done in a sleep lab or sometimes at home.

Treatment: weight loss, avoiding alcohol and sedatives before bed, sleeping on the side, treating nasal blockage, CPAP (continuous positive airway pressure) therapy, oral appliances, and in selected cases surgery.

3. Restless legs syndrome (RLS)

An irresistible urge to move the legs, with crawling, tingling, or aching sensations, mostly in the evening or at night and relieved by movement. It disrupts sleep onset. Iron deficiency is a common, treatable contributor, along with kidney disease, pregnancy, and some medicines. Treatment includes correcting iron, lifestyle changes, and medicines if needed.

4. Narcolepsy and hypersomnia

Overwhelming daytime sleepiness, sudden "sleep attacks," and in narcolepsy sudden muscle weakness triggered by emotion (cataplexy). These are neurological conditions requiring specialist care.

5. Circadian rhythm disorders

The body clock is out of step with the desired schedule.

• Delayed sleep phase: a natural "night owl" pattern, common in teenagers and young adults
• Shift work disorder: from night or rotating shifts, relevant for many working in call centres and healthcare
• Jet lag

6. Parasomnias

Abnormal behaviours during sleep:

• Sleepwalking and sleep talking
• Night terrors
• REM sleep behaviour disorder (acting out dreams, sometimes violently; can be an early sign of Parkinson's disease in older adults)
• Bruxism (teeth grinding)

7. Sleep-related breathing and movement conditions in children

Snoring, mouth breathing, bedwetting, restless sleep, or poor school performance in a child can signal enlarged tonsils or adenoids and sleep apnoea. These should be assessed.

Common Causes and Contributors

• Chronic stress, anxiety, and depression
• Late-night screen use and exposure to bright light
• Excess caffeine, nicotine, and alcohol
• Irregular sleep timings
• Heavy late dinners
• Noise, heat, and an uncomfortable bed
• Pain conditions such as arthritis and back pain
• Thyroid problems, heart failure, reflux, asthma
• Medicines (some blood pressure, steroid, and antidepressant drugs)
• Hormonal changes, such as menopause
• Obesity

When to See a Doctor

Seek help if:

• Sleep problems last more than three weeks
• You snore loudly with gasping or pauses in breathing
• You feel sleepy during the day despite enough time in bed
• You nearly fall asleep while driving
• Your partner notices abnormal movements or breathing pauses
• Poor sleep is affecting your mood, work, or health

How Sleep Disorders Are Diagnosed

• Detailed history, including a sleep diary for two weeks
• Epworth Sleepiness Scale and other questionnaires
• Examination of the nose, throat, neck, and weight
• Blood tests (iron, thyroid, sugar) and ECG as needed
• Overnight sleep study for suspected apnoea, limb movement disorders, or unusual behaviours
• Daytime sleep latency testing for narcolepsy

Treatment Approaches

• Treat the underlying cause: apnoea, reflux, pain, depression, iron deficiency.
• Cognitive behavioural therapy for insomnia (CBT-I): the most effective long-term treatment for chronic insomnia.
• Sleep hygiene (see below).
• CPAP or other devices for sleep apnoea.
• Medicines when appropriate, prescribed carefully and for a limited time. Sleeping tablets should not be started without medical advice because of dependence and next-day effects.
• Light therapy and timed melatonin for body clock disorders, under guidance.

Sleep Hygiene: Habits That Help

• Go to bed and wake up at the same time every day, including weekends
• Get morning sunlight and daytime activity
• Avoid caffeine after early afternoon
• Avoid alcohol and heavy meals close to bedtime
• Stop screens at least 30 to 60 minutes before sleep
• Keep the bedroom dark, quiet, and cool
• Use the bed only for sleep, not for work or scrolling
• Wind down with reading, light stretching, or slow breathing
• If you cannot sleep after about 20 minutes, get up, do something calm in dim light, and return when sleepy
• Avoid long afternoon naps, and keep any nap under 30 minutes
• Do not watch the clock

Care at Prakash Hospital Noida

At Prakash Hospital Noida, our physicians evaluate sleep problems including snoring, daytime sleepiness, and insomnia, arrange appropriate investigations, and guide treatment with lifestyle measures, devices, and medicines where indicated.

Whether you live in Sector 18, Sector 62, Greater Noida West, or anywhere nearby, Prakash Hospital Noida is a trusted name for sleep disorder evaluation and care in Noida.

To book a consultation, call the number.

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