Sleep: the invisible pillar
The habit that holds it all up
What you learn hereExplain why sleep supports mood, memory and regulation, and choose one sleep-hygiene change to try.
This page summarises the lesson and cites its sources. The full lesson —animated, narrated, with its practice— opens with the Lifetime Pass, along with the rest of the course and everything to come.
See the Pass — CA$39 →SourcesDiekelmann & Born, 2010 · Irish et al., 2015 · Trauer et al., 2015 · Updated 2026-07-18