Restore the bedroom as a stimulus for sleep only

Reserve the bed exclusively for sleep and sex — no working, scrolling, or watching in bed.

Why it works

Stimulus control therapy — the best-supported behavioral intervention for insomnia — is based on the observation that associating the bed with wakefulness (working, scrolling, watching content) conditions the nervous system to activate rather than down-regulate when lying down. Restricting bed use to sleep reconsolidates the bed-sleep association through classical conditioning, reducing sleep-onset latency over days to weeks.

How to do it

1. No working, no phones, no tablets, no laptop, no TV in bed — from today.
2. If you are in bed and not sleepy after 20 minutes, get up and do a calm activity elsewhere until sleepy, then return.
3. Consistency across every night matters more than perfection on a given night — one exception re-weakens the association.
4. Keep the bedroom cool, dark, and quiet to reinforce it as a sleep environment.

Evidence

Stimulus control therapy for insomnia has strong RCT and meta-analytic support, consistently among the most effective single components of CBT-I (cognitive behavioral therapy for insomnia). (rct)

Studies are in insomnia patients; the same mechanism applies to healthy sleepers, but effect magnitudes are smaller for those with good baseline sleep.

Sources

• Morin et al. (2006), psychological and behavioral treatment of insomnia, Sleep

Common mistake

Working on a laptop in bed "just during crunch periods" — irregular exceptions re-establish the wakefulness association more quickly than consistent non-use removes it.