A structured pre-sleep sequence is recommended to shift the nervous system from sympathetic ("fight-or-flight") to parasympathetic (rest) dominance before attempting sleep, rather than going straight from daytime activity/screens into bed.
Sequence: stretch → spend ~10 minutes processing thoughts/journaling outside of bed, in dim light → read.
Whoop wearable data cited across its user base shows reading before bed is associated with roughly a 5% improvement in sleep.
Pairs with The Cave Principle: Sleep Environment Optimization (fixed environment) as the behavioral, repeated-nightly half of the pre-sleep protocol.
The recommended run-up to bed follows a sequence: stretch, process the day's thoughts, then read — each step nudging the body from sympathetic (fight-or-flight) activation toward parasympathetic (rest-and-digest) relaxation. The "processing thoughts" step is a specific 10-minute brain dump: spend about 10 minutes (as little as 5 to start) outside of bed, in dim light, journaling or writing a to-do list to offload a racing mind before lying down. Deep breathing, stretching, and reading before bed all work the same way — actively dampening sympathetic arousal rather than just passively waiting for sleepiness to arrive.