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It's 2 a.m. and your mind won't switch off. Or you fall asleep fine, then wake at 3 a.m. and lie there until morning. Almost everyone has a bad night now and then before an exam, a big meeting, a stressful week. That's normal. But when poor sleep continues night after night, for weeks or months, it's no longer 'just stress.' Dr. Manish Aggarwal, a pulmonologist and sleep specialist, explains what insomnia is, why it happens, and how it's treated so you can make an informed decision about your sleep health.
Insomnia means having trouble falling asleep, staying asleep, or waking up too early and being unable to fall back asleep—even when you have enough time and a suitable environment to sleep.
Everyone experiences this occasionally. It becomes Insomnia Disorder when the pattern happens at least three nights a week, continues for three months or longer, and starts to affect how you function during the day—disrupting your energy, mood, focus, or work performance.
This is different from a few rough nights caused by travel, temporary illness, or an acute stressful event, which usually resolve on their own. Insomnia disorder tends to build on itself: poor sleep causes stress about sleep, which makes sleep even harder—which is exactly why early professional evaluation matters.
When sleep trouble shows up, paying attention to a few clinical details helps a doctor understand exactly what is happening in your sleep cycles:
Tracking if it happens a few scattered nights, or most nights of the week.
Identifying whether it is trouble falling asleep, staying asleep, or waking too early.
Pinpointing how long it has been going on—days, weeks, or consecutive months.
Checking for loud snoring, breathing pauses, daytime anxiety, or low mood.
Not sure what your sleep pattern means? Talk to Dr. Manish Aggarwal today.
Not all insomnia looks the same. Some people struggle to fall asleep, others fall asleep fine but wake up repeatedly, and some wake up far too early. Understanding which type you have helps guide the right treatment pathway.
| Type of Insomnia | What It Feels Like |
|---|---|
| Acute Insomnia | Short-term sleep trouble, usually linked to a specific stressor (exams, a family issue, travel). Often resolves within days to a few weeks. |
| Chronic Insomnia | Sleep difficulty occurring at least 3 nights a week for 3 months or more, often without an obvious single cause. |
| Sleep-Onset Insomnia | Difficulty falling asleep at the start of the night, even when you feel tired. |
| Sleep-Maintenance Insomnia | Falling asleep without much trouble, but waking up multiple times during the night and struggling to fall back asleep. |
| Early Morning Awakening Insomnia | Waking up much earlier than planned (for example, 4 a.m.) and being unable to fall back asleep, even though you're still tired. |
Many patients experience more than one type at the same time—for instance, taking long to fall asleep and waking up frequently at night. If these patterns sound familiar, a proper sleep evaluation can help identify exactly what you are dealing with.
Insomnia isn't only about total lack of sleep; it displays distinct disturbances during the night hours:
Poor nighttime sleep impacts your systemic function during waking hours through multiple physical and cognitive indicators:
Insomnia rarely has just one cause. It is often a complex combination of behavioral habits, underlying health conditions, and life circumstances working together. This is a vital reason to see a sleep specialist rather than simply reaching for a sleeping pill—if an undiagnosed condition like sleep apnea or a thyroid problem is present, treating only the symptom of "not sleeping" won't fix the real root issue.
Having one or more risk factors doesn't mean insomnia is guaranteed—it simply means extra attention to structured sleep habits helps protect your health:
Not always. A rough night before a big day is normal. However, early evaluation prevents acute insomnia from turning into a chronic problem. You should see a specialist if you notice:
Dr. Manish Aggarwal is a pulmonologist and sleep specialist experienced in diagnosing and treating insomnia, sleep apnea, and related breathing conditions during sleep. During a comprehensive consultation, he maps out your sleep architecture using a thorough diagnostic workup:
Treatment is personalized, logical, and step-by-step:
CBT-I (Cognitive Behavioural Therapy for Insomnia): The gold-standard, first-line, evidence-based treatment. It includes sleep restriction therapy, stimulus control, cognitive restructuring, and relaxation techniques. Unlike sleeping pills, CBT-I treats the actual behavioral root cause, has longer-lasting benefits, and carries zero risk of physical dependency.
Sleep Hygiene & Underlying Support: Optimizing caffeine timings, screen habits, and bedtime environments while managing comorbid issues like sleep apnea, acid reflux, or thyroid disorders directly. Medications are reserved only when clinically appropriate, used for the shortest necessary duration under medical supervision.
If you've been lying awake at night, waking up exhausted, or relying heavily on caffeine and naps to get through the day, it's worth getting checked. Insomnia is highly treatable, and early diagnosis makes resolution easier.
Insomnia is a sleep disorder involving difficulty falling asleep, staying asleep, or waking too early and being unable to fall back asleep even with enough time and opportunity to sleep.
It can be either. Insomnia can occur on its own as a primary disorder, or as a symptom of another condition like anxiety, depression, or a medical illness. When persistent, it's treated as a condition requiring proper care.
Chronic insomnia is defined as sleep difficulty occurring at least three nights a week for three months or more.
Stress, anxiety, depression, poor sleep habits, shift work, caffeine or alcohol use, screen time before bed, chronic illness, certain medications, and underlying sleep disorders like obstructive sleep apnea. It's usually a combination rather than one single cause.
Common symptoms include difficulty sleeping, frequent night waking, early waking, daytime fatigue, poor concentration, irritability, and mood changes.
The primary types include acute, chronic, sleep-onset (trouble falling asleep), sleep-maintenance (trouble staying asleep), early-morning-awakening, and comorbid (linked to another condition). Many people experience more than one type at once.
Yes, it's common due to hormonal changes and physical discomfort. If it's severely affecting rest, it should be discussed with a doctor to find safe management strategies.
Cognitive Behavioural Therapy for Insomnia (CBT-I) is the recognized first-line treatment because it addresses the behavioral and cognitive root causes without the risks of long-term medicine use.
Yes, in many cases. CBT-I, sleep hygiene changes, stress management, and treating underlying medical conditions are highly effective alone, or they can be paired alongside short-term medication when clinically needed.
You should consult a specialist if sleep problems last more than a few weeks, significantly affect your daily functioning, or occur alongside loud snoring, gasping, anxiety, or depression.
We are available to answer queries, schedule urgent EBUS sessions or arrange Sleep diagnostic devices.
Break the cycle of sleepless nights and daytime exhaustion. Get a personalized, medical sleep management plan from Dr. Manish Aggarwal in Delhi.