Insomnia

A simple explanation

Insomnia is what happens when the part of you that watches for danger does not stand down at the threshold of sleep. The body lies down. The room is dark. The day is over. And the system that should release into rest stays on — scanning, rehearsing, predicting the next failure of the next night. Sleep, which used to be a place the body went, becomes a place the body tries to reach.

This is the central inversion. Sleep is not a thing you do. It is a thing that arrives when you stop doing. Insomnia is the loop in which the trying becomes the obstacle.

An everyday example

You go to bed at eleven. By eleven-thirty you are aware that you are not asleep. By midnight you have done the calculation: if I fall asleep right now, I will get six hours. By twelve-thirty: five and a half. The arithmetic is itself a sympathetic activation. By one a.m. the body has produced a small surge of cortisol in response to the perceived threat of the next day. By two, you are negotiating with sleep the way you would negotiate with a creditor.

You eventually sleep, shallowly, from three to six-thirty. The day that follows is functional and grey. By eight that evening, the dread of the next bedtime begins. The Threat System, having been activated by the bed three nights in a row, now treats the bed itself as the trigger. The conditioning is no longer about danger out in the world. The bed is the danger now.

What is insomnia disorder versus a bad week of sleep?

DSM-5 Insomnia Disorder is the persistent form — difficulty falling asleep, difficulty staying asleep, or waking earlier than wanted, three or more nights per week, for three or more months, with daytime cost (fatigue, mood, attention, function). About ten to fifteen percent of adults meet criteria for chronic insomnia.

Short-term sleep difficulty is situational — a stressor, a time-zone change, a sick child, a grief. It resolves when the situation resolves. The clinical threshold is not how bad a single night is; it is how stuck the loop has become. Insomnia disorder is the loop running on its own, after the original trigger has left.

Why does lying in bed awake make it worse?

Because the bed becomes conditioned. The nervous system is an associative organ — it learns what a place means by what reliably happens there. A bed that holds you awake for hours becomes, to the body, a place where wakefulness happens. The next night, the body arrives at the bed already braced. The brace is the hyperarousal. The hyperarousal is the insomnia.

This is the behavioural mechanism CBT-I targets directly. Stimulus control — leave the bed if you have not slept within twenty minutes; return only when sleepy — works by unconditioning the bed. The substitute (lying awake hoping) reinforces the loop. Leaving the bed breaks the association. The bed has to mean sleep again before sleep can return to the bed.

The behavioral loop

How chronic insomnia compounds:

1. Trigger — a stressor, a schedule disruption, a night of poor sleep.
2. First reaction — the body responds normally; the next night may also be poor.
3. The dread enters — by the third or fourth night, the bedtime itself becomes a cue for anxiety. Will tonight be another one?
4. Effort to sleep — the person tries harder: earlier bedtime, longer time in bed, calculations of how much sleep is left.
5. Conditioning — the bed accumulates the wakefulness. The Threat System, reading the bed as a place where vigilance happens, fires sympathetically the moment the head hits the pillow.
6. Substitute installs — a sleep medication, a glass of wine, a longer scrolling tail. The substitute delivers some sleep-shaped output but does not address the conditioning. The loop becomes chronic.
7. Daytime cost — fatigue, attention impairment, emotional reactivity, immune burden. Every domain pays. The residue is total.

Emotional drivers

Three layered feelings, often unnoticed individually:

• A specific dread — the anticipation of failing to sleep, which is itself sympathetic activation and itself the cause of failing to sleep.
• A quiet shame — other people can do this; what is wrong with me — which keeps the loop private and delays help-seeking.
• A grief — for the relationship to night the person used to have, when the bed was just the bed and sleep just arrived.

What your nervous system does

Insomnia is, at the body level, sympathetic dominance in the wrong window. Heart-rate variability is reduced. Cortisol, which should be low at sleep onset, runs elevated. The pre-frontal cortex, which should be quieting, keeps rehearsing the next day. The amygdala, the Threat System's seat, reads the bed as a context where vigilance is required and recruits the autonomic system accordingly.

This is why "just relax" fails as advice. The parasympathetic state that sleep requires cannot be reached by trying. It is reached by removing the conditioning that prevents it — by making the bed a place that means sleep again, by aligning the circadian rhythm, by addressing the daytime arousal that bleeds into night. The work is structural. The relaxation is the result.

The DojoWell interpretation

Insomnia is the Threat System's chronic activation in the one place it most needs to stand down. The original system — rest — requires parasympathetic dominance. The System, evolved to protect against danger, has generalised: the bed itself, the bedtime itself, the thought of sleep itself have become threats. The System fires. The original system cannot run. The residue accumulates across every domain because sleep-deprivation impairs everything — attention, mood, immune function, relationships, work, meaning-making itself.

This is the residue accumulation signature in its purest form. The deposit each night approaches zero. The residue is enormous and compounding. The effort — the work of trying to sleep, of lying in bed bargaining, of dreading the next bedtime — is high. Density collapses, and the collapse is not local: it spreads to every other System, because a sleep-deprived body cannot run any of the four well.

The substitute — sleep medication as primary treatment — delivers some hours of sleep-shaped output. The fast hedonic system logs satiation; the System relaxes briefly. But the conditioning is untouched. The bed still means wakefulness. The hyperarousal still fires at bedtime. Stop the medication, and the loop returns intact. This is the signature of substitution mimicry: the outer shape arrives, the deposit does not land, the loop persists underneath.

CBT-I works because it does not substitute. It addresses the loop's mechanism — the conditioning of the bed, the irregularity of the schedule, the catastrophic thoughts about sleep loss, the time spent in bed not sleeping. It is harder, slower, and less immediately gratifying than a pill. It is also the only treatment that holds after the treatment ends.

The reading is not moral. It does not blame the person for the loop. The loop is mechanistic; it does what conditioning does. The reading just makes it legible — and legibility is what makes CBT-I's counterintuitive moves (less time in bed, leaving the bed when awake) comprehensible enough to follow.

How do I know if I have insomnia disorder?

The threshold is structural, not severity-based: difficulty initiating sleep, maintaining sleep, or early-morning awakening with inability to return to sleep — three or more nights per week, for three or more months, with daytime impairment, and not better explained by another sleep disorder, substance, or medical condition.

If the difficulty has lasted under three months, the clinical name is short-term insomnia and the recommended approach is the same behavioural moves, applied earlier. The window to prevent chronicity is the first few weeks. Most people do not recognise the loop until it has installed.

The honest test is not how bad was last night but do I now dread the bed. The dread is the diagnostic. The dread is the conditioning. The dread is what CBT-I dissolves.

Practical steps

1. Stimulus control: leave the bed if you have not slept within about twenty minutes. Return only when sleepy. This is the single most effective behavioural move and the one most people resist because it feels counterproductive. It is the move that unconditions the bed.
2. Sleep restriction (with clinical support): match time in bed to actual sleep time, then expand gradually. Counterintuitive and often initially uncomfortable; targets the loop directly. Work with a clinician.
3. Fixed wake time, every day, including weekends. The wake time anchors the circadian rhythm. The bedtime can drift; the wake time cannot.
4. No catastrophising at three a.m. The arithmetic of if I sleep right now, I will get N hours is itself an arousal. Notice it; do not solve it.
5. Address daytime hyperarousal. Insomnia is rarely only a night problem. The autonomic state at three p.m. predicts the state at eleven p.m. Daytime work — the breath, the walks, the reduction of caffeine after noon — is sleep work.
6. Medication, if used, is a bridge, not a destination. Short-term use while CBT-I proceeds is reasonable. Long-term use as primary treatment leaves the conditioning intact and the loop returns when the medication stops.
7. If the loop has lasted more than three months, seek CBT-I. It is the empirical first-line treatment. Apps and clinician-delivered versions both work. The active ingredient is the behavioural restructuring, not the modality.

Reflection questions

• When did the dread of the bed first install? What had been happening that week?
• What does your body do, specifically, in the twenty minutes after the light goes out?
• Have you been treating insomnia as a problem of getting more sleep, when it might be a problem of unconditioning the bed?
• Where else in your life is the Threat System still firing in a place that no longer holds danger?

Frequently Asked Questions