Why You Can’t Sleep—And Why Sleep Hygiene Isn’t Enough

You’re lying in bed. Again. Eyes open. Heart racing slightly. Mind running through tomorrow’s tasks, last week’s conversation, that thing you need to remember.

You check your phone. 2:47am.

You’ve been here for two hours already. You know you need sleep. You have an important meeting tomorrow. But the harder you try to sleep, the more awake you feel.

This is the paradox of insomnia—where the effort to sleep keeps you awake—and it’s a pattern I recognize both professionally and personally. As a psychiatrist who works with sleep disorders, I’ve treated hundreds of people in this exact situation. I also experienced it myself during my medical training.

What I’ve learned is that most people are addressing the wrong aspects of the problem.

What Chronic Sleep Loss Actually Does

Sleep deprivation affects more than your energy levels. When you’re consistently getting 3-4 hours of fragmented sleep per night, several systems are impacted:

Cognitive function declines. Memory consolidation is impaired. New information doesn’t encode as effectively. You may need to re-read material multiple times. Attention and concentration become effortful.

Emotional regulation weakens. Sleep deprivation reduces prefrontal cortex activity while increasing amygdala reactivity. In practical terms: you’re more irritable, more reactive to minor frustrations, and less able to modulate emotional responses.

Decision-making slows. Tasks that normally feel routine require more cognitive effort. Problem-solving becomes more difficult. Reaction times increase.

Physical health is affected. Sleep loss is associated with immune suppression (you get sick more frequently), elevated inflammatory markers, and increased cardiometabolic risk over time.

The challenge: These changes happen gradually. You don’t necessarily notice you’re functioning at 70% capacity until someone points it out, or until you recover and realize how impaired you were.

The Brain Science of Sleep

 

Sleep is not passive downtime. It’s an active maintenance process. Here’s what happens during normal sleep:

Memory consolidation: The hippocampus replays the day’s experiences, transferring important information to long-term storage in the cortex. Without adequate sleep, this process is disrupted.

Metabolic clearance: The glymphatic system—the brain’s waste removal system—becomes more active during sleep. It clears metabolic byproducts, including proteins like amyloid-beta. Chronic sleep loss is associated with reduced clearance efficiency.

Synaptic homeostasis: During waking hours, synaptic connections strengthen as you learn and experience things. During sleep, unnecessary connections are pruned, maintaining neural efficiency.

Hormonal regulation: Sleep regulates multiple hormone systems—cortisol, growth hormone, ghrelin, leptin. Disrupted sleep affects appetite regulation, stress response, and metabolism.

Immune function: Cytokine production increases during sleep. These proteins are essential for fighting infection and managing inflammation.

These processes explain why sleep loss has widespread effects beyond just feeling tired.

Our Context

Our work environment creates specific sleep challenges.

Long working hours: A typical workday runs 9am-7pm or later. Add 1-2 hours of commute time in Klang Valley traffic, and many people don’t reach home until 8-9pm.

Always-on culture: WhatsApp, email, and work communication often extend into evening hours. The boundary between work time and personal time is porous.

Cultural attitudes: There’s often an implicit message that working long hours despite exhaustion demonstrates commitment. Rest is sometimes viewed as a luxury rather than a necessity.

The result: Many professionals operate in a chronic state of insufficient sleep, often without recognizing it as a medical concern.

From a clinical perspective, I see this pattern frequently—engineers, lawyers, healthcare workers, corporate professionals—all experiencing sleep difficulties that significantly impact their functioning, but often not connecting their symptoms to sleep loss.

What Insomnia Actually Costs

 

The impacts of chronic insomnia extend across multiple domains:

Professional performance: Reduced productivity, slower decision-making, more errors, difficulty retaining information. Career progression may stall without a clear explanation.

Relationships: Increased irritability, reduced emotional availability, cancelled social plans due to exhaustion. Partners and family members often notice the changes before the person experiencing insomnia does.

Health outcomes: Chronic insomnia is associated with increased risk of depression, anxiety disorders, cardiovascular disease, diabetes, and obesity. The relationship is bidirectional—these conditions both cause and are worsened by sleep problems.

Financial impact: Direct costs (medical consultations, supplements, attempted solutions) and indirect costs (reduced work performance, missed opportunities, poor financial decisions made while cognitively impaired).

Safety: Increased accident risk while driving or operating equipment. Microsleep episodes can occur without awareness.

These aren’t theoretical risks. They’re documented patterns across research and clinical practice.

Why Sleep Hygiene Alone Is Often Insufficient

Standard sleep hygiene recommendations include:

These recommendations are evidence-based and helpful. They address perpetuating factors that maintain poor sleep.

However, sleep hygiene alone is rarely sufficient for chronic insomnia. Here’s why:

Conditioned arousal: If you’ve spent months or years lying in bed unable to sleep, your brain may have learned to associate bed with wakefulness and frustration rather than sleep. This is a conditioned response—similar to how a place or smell can trigger a specific memory or emotion.

Performance anxiety: When sleep becomes difficult, many people develop anxiety about sleep itself. You start monitoring whether you’re falling asleep, which increases arousal and makes sleep less likely. This creates a self-reinforcing cycle.

Hyperarousal: Chronic insomnia is often associated with elevated physiological and cognitive arousal—increased heart rate, racing thoughts, heightened alertness. Sleep hygiene doesn’t directly address this arousal state.

Cognitive patterns: Thoughts like “I’ll never sleep,” “I can’t function without 8 hours,” or “I need to try harder to sleep” can paradoxically maintain insomnia. These beliefs increase pressure and anxiety around sleep.

Sleep hygiene optimizes the environment. But it doesn’t retrain the learned associations or address the anxiety maintaining the pattern.

The Evidence-Based Approach: CBT-I

Cognitive Behavioral Therapy for Insomnia (CBT-I) is recommended as first-line treatment for chronic insomnia by the American College of Physicians and American Academy of Sleep Medicine.

It’s different from sleep hygiene because it directly addresses the learned patterns maintaining insomnia.

CBT-I typically includes:

Stimulus control: Strengthening the association between bed and sleep by using the bed only for sleep (and sex), not for worrying, working, or lying awake. If you can’t sleep within 15-20 minutes, you get up and return only when sleepy.

Sleep restriction: Temporarily limiting time in bed to match actual sleep time. This increases sleep drive and consolidates fragmented sleep. Time in bed is gradually increased as sleep efficiency improves.

Cognitive restructuring: Identifying and modifying unhelpful beliefs about sleep. For example, challenging catastrophic thoughts about sleep loss or unrealistic expectations about sleep needs.

Relaxation techniques: Reducing physiological and cognitive arousal through progressive muscle relaxation, breathing exercises, or mindfulness practices.

Sleep education: Understanding sleep architecture, circadian rhythms, and how sleep drive works—this removes much of the mystery and anxiety around sleep.

Research shows CBT-I produces sustained improvements in sleep onset latency, wake after sleep onset, and sleep efficiency. Unlike hypnotic medications (which provide short-term symptom relief but don’t address underlying patterns), CBT-I effects tend to persist after treatment ends.

Individual responses vary, but many people notice changes within the first few weeks of implementing these strategies.

My Experience

During medical training, I developed significant sleep difficulties. I was getting 3-4 hours of fragmented sleep most nights. I noticed cognitive slowing, emotional instability, and frequent illness, but I attributed it to work stress rather than recognizing it as a sleep disorder.

A colleague’s observation prompted me to address it properly. I chose to use CBT-I principles rather than rely solely on medication.

The process was uncomfortable at first—especially sleep restriction, which feels counterintuitive when you’re already sleep deprived. But after several weeks of consistent implementation, the pattern shifted. Sleep became less effortful.

This personal experience, combined with my professional training, shaped how I approach sleep disorders in my practice. I understand both the clinical framework and the lived experience of implementing these strategies.

What This Means For You

If you’re reading this because you struggle with sleep, here’s what the evidence suggests:

If your sleep problem is primarily behavioral (irregular schedule, excessive caffeine, poor sleep environment), sleep hygiene modifications may be sufficient.

If you have chronic insomnia (difficulty falling or staying asleep for 3+ months, occurring 3+ nights per week, with daytime impairment), sleep hygiene alone is unlikely to resolve it. You’ll likely benefit from a structured CBT-I approach.

If you have symptoms suggesting a medical sleep disorder (loud snoring with breathing pauses, restless legs, unusual movements during sleep), you need a medical evaluation before behavioral interventions.

The challenge is that most online sleep content focuses on sleep hygiene tips, which are helpful but insufficient for chronic insomnia. Very few resources provide structured CBT-I education in a format accessible to non-specialists.

Because structured CBT-I can be difficult to access in Malaysia, I created the 30-Day Sleep Reset to provide a guided, systematic approach.

About Moodie’s 30-Day Sleep Reset

The program is based on CBT-I principles and structured to guide you through the process systematically.

The program covers:

It’s designed for people who:

Early Bird pricing: RM180 (regular RM250) for the first 50 participants. Launch date: January 26, 2026

If you’re interested in learning more, you can join the waitlist here: [link]

Important Notes

This program is educational, not medical treatment. It teaches CBT-I principles but doesn’t replace medical care.

When to seek medical evaluation first:

This approach works best for: Insomnia driven by conditioned arousal, performance anxiety, racing thoughts, and learned associations between bed and wakefulness.

– Dr. Lee
Psychiatrist | Founder, Moodie

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