Insomnia 3P Model
Spielman's behavioral model of insomnia · Spielman's 3P model (Predisposing, Precipitating, Perpetuating) (1987)
The 3P model explins chronic insomnia as the interaction of Predisposing factors (genetic vulnerability, anxiety proneness), a Precipitating event (stress, loss, change), and Perpetuating behaviors and beliefs (worry, extended time in bed, napping, caffeine) that maintain the sleep disruption even after the initial trigger has passed.
Core Concepts
The Problem
Chronic insomnia persists because patients develop compensatory strategies that inadvertently reinforce wakefulness in bed.
The Claim
Identifying and modifying perpetuating factors through cognitive and behavioral techniques can break the insomnia cycle.
Key Evidence
- •Extensive clinical trials show CBT-I targeting perpetuating factors resolves insomnia in the majority of patients, with effects that endure.
Practical Implication
Treatment should focus less on root causes and more on the current behaviors and thoughts that sustain sleeplessness.
Nuance & Limits
Some predisposing factors (e.g., genetic sensitivity) cannot be changed, but addressing perpetuating mechanisms still leads to recovery.
Source Material
Citation Density
substantial research base in sleep medicine
Gaps
- ⚠ The exact neurobiological mechanisms by which perpetuating behaviors interact with hyperarousal to maintain insomnia require further clarification.
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