CBT-I
Core Mechanism
Sleep restriction and stimulus control consolidate sleep drive and decondition wakefulness; cognitive restructuring reduces hyperarousal and catastrophic thinking about sleep
Ontology
Chronic insomnia as a learned disorder of hyperarousal and conditioned sleeplessness maintained by maladaptive behaviors and beliefs, not a primary neurological deficit
Therapeutic Voice
"We're going to compress the time you spend in bed to build up your sleep drive. It will feel harder before it feels easier."
View of the Person
A person whose natural sleep capacity is intact but has been disrupted by learned behaviors and beliefs that perpetuate insomnia
Evidence
AASM: first-line treatment for chronic insomnia (over medication). ACP: recommended over pharmacotherapy. NICE: recommended.
50+ RCTs
Multiple Cochrane reviews and meta-analyses; large effect sizes for sleep onset and efficiency
First-line treatment for chronic insomnia — recommended over sleep medication including benzodiazepines and z-drugs. Digital CBT-I (dCBT-I) has strong evidence and expands access significantly. Highly effective for insomnia comorbid with depression, PTSD, and chronic pain. Often underused by mental health clinicians who don't screen for insomnia.
Conditions
Epistemology
Blind Spots
Sleep restriction can be challenging for people with bipolar disorder (may trigger mania); requires motivation and tolerance of short-term worsening; group or digital formats may not address comorbidities
Contraindications
Untreated sleep apnea or other medical sleep disorders, occupations where sleep restriction creates safety risk (e.g., operating heavy machinery), bipolar disorder where sleep restriction may trigger mania, active substance abuse affecting sleep
Training
Graduate training in CBT; additional specialized training in CBT-I protocols recommended for clinical use
CBSM and CBT-I specific training through AASM, UPenn, and other programs
Variable; workshop training common (8–16 hrs) plus supervised practice
$500–2K for specialized training
Equity & Cultural Adaptations
Philosophical Roots
Behavioral learning theory (Pavlov, Skinner); cognitive appraisal theory; Spielman's 3P model (predisposing, precipitating, perpetuating factors)
Related Modalities
Test Yourself
Why does sleep restriction — giving less time in bed — improve insomnia?
Show answer
Consolidates sleep drive, reduces conditioned wakefulness, and breaks the arousal-insomnia cycle. Counterintuitive but strongly evidence-based.