Sleep is not a passive state — it is a period of active neurological, physiological, and emotional restoration. Chronic insomnia affects approximately 10–30% of adults worldwide and is independently associated with elevated risk of depression, anxiety disorders, and burnout (Morin & Jarrin, 2013, Sleep Medicine Clinics) — making it one of the highest-leverage treatment targets in mental health care. When sleep is consistently disrupted, the consequences extend far beyond daytime tiredness: mood destabilises, cognitive performance declines, anxiety heightens, and physical health is affected. At Encode Mental Health Clinic in Surat, we offer specialised assessment and treatment for insomnia and sleep difficulties using Cognitive Behavioural Therapy for Insomnia (CBT-I), which is the first-line recommended treatment worldwide. CBT-I is more effective than sleep medication over the long term, produces durable results, and addresses the root causes of insomnia rather than managing symptoms temporarily.
Insomnia is defined by persistent difficulty falling asleep, staying asleep, or waking too early — occurring despite adequate opportunity for sleep, causing daytime distress or impairment, and present at least three nights per week for three months or more. Short-term sleep difficulties are common and typically resolve when the stressor passes. Chronic insomnia is maintained by cognitive and behavioural factors that persist even after the initial trigger has resolved: spending too long in bed awake, irregular sleep-wake schedules, clock-watching, napping to compensate, and catastrophic thoughts about sleep and its consequences. These collectively weaken the brain's drive for sleep and its association of the bedroom with sleepiness. Other sleep concerns include Delayed Sleep Phase Disorder, restless legs, and sleep apnoea — which requires medical assessment. Accurate assessment determines which conditions are present and which require referral.
The relationship between sleep and mental health is bidirectional and powerful. Even one night of poor sleep elevates cortisol levels and amygdala reactivity — the brain's threat detector becomes hypersensitive, making ordinary stressors feel more overwhelming. After several nights of poor sleep, the prefrontal cortex — responsible for rational thinking and emotional regulation — begins to underperform. The result resembles clinical anxiety or depression: catastrophic thinking, emotional volatility, reduced resilience, and distorted self-assessment. Chronic insomnia is independently associated with increased risk of developing depression, anxiety disorders, and burnout — not merely as a symptom but as a contributing cause. For people who already have a mental health condition, sleep disruption is one of the strongest predictors of relapse. Addressing sleep is often one of the highest-leverage interventions available, producing improvements across multiple domains simultaneously.
CBT-I is a structured programme that addresses the specific cognitive and behavioural factors maintaining chronic insomnia, typically across 6–8 sessions. Core components include: Sleep Restriction — temporarily limiting time in bed to build the homeostatic sleep drive, then gradually extending as sleep efficiency improves (counterintuitive but most effective); Stimulus Control — rebuilding the brain's association between bed and sleepiness by limiting in-bed activities to sleep and sex only; Sleep Hygiene — personalised guidance on environmental and behavioural factors; Cognitive Restructuring — addressing catastrophic thoughts about sleep that maintain arousal and anticipatory anxiety; and Relaxation Training — techniques for reducing physiological and mental arousal at bedtime. A sleep diary is used throughout CBT-I to track patterns, identify maintaining factors, and monitor progress.
CBT-I typically begins showing results within 2–4 weeks, though initial sleep restriction can produce a temporary increase in sleepiness before improvement. Long-term follow-up studies show that the majority of people who complete CBT-I maintain their improvements at one year and beyond — in contrast to sleep medication, where discontinuation typically leads to return of insomnia. The goal of CBT-I is not perfect sleep every night — that is not how human sleep works — but a consistent, efficient sleep pattern that leaves the person rested and functional. The programme also equips clients with the understanding and tools to self-manage any future sleep difficulties independently. For people whose insomnia co-occurs with anxiety or depression, addressing sleep often produces downstream improvements in mood and anxiety that accelerate the overall treatment response.
Cognitive Behavioural Therapy for Insomnia (CBT-I) is the first-line recommended treatment for chronic insomnia — rated above sleep medication by international sleep medicine guidelines. It addresses the specific cognitive and behavioural factors that maintain insomnia: sleep restriction, stimulus control, sleep hygiene, cognitive restructuring, and relaxation training. CBT-I produces lasting results because it changes the underlying patterns, not just the symptoms.
For chronic insomnia, CBT-I is more effective than sleep medication in the long term and produces more durable results. Medications can provide short-term relief but do not address the maintaining factors, and their efficacy diminishes over time. CBT-I takes more active engagement, but outcomes at 6 months and beyond consistently favour CBT-I over medication. It is suitable for most adults, including older adults and those with comorbid mental health conditions.
A standard CBT-I programme spans 6–8 sessions over approximately 6–8 weeks. Assessment and psychoeducation typically occupy the first 1–2 sessions, with the core components delivered over the following weeks. Many people notice meaningful improvement within the first 2–4 weeks of implementing sleep restriction and stimulus control.
Yes. Sleep difficulties are both a symptom and a driver of many mental health conditions. Insomnia is present in the majority of people with depression, anxiety, PTSD, and bipolar disorder. A comprehensive sleep assessment at Encode will evaluate whether the sleep difficulty is primary (insomnia disorder) or secondary to another condition — and the treatment plan will address both.
The single most impactful immediate change is to fix your wake time — getting up at the same time every day, regardless of how the night went, builds the homeostatic sleep drive that makes it easier to fall asleep the following night. Avoiding long daytime naps, reducing stimulating activities in the hour before bed, and reducing clock-watching are also valuable immediate changes.
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