https://www.sciencealert.com/brain-scans-reveal-surprising-tipping-point-minutes-before-we-fall-asleep
Brain Scans Reveal Surprising 'Tipping Point' Minutes Before We Fall Asleep : ScienceAlert
Nov 12, 2025 - We really do 'fall' asleep, a new study shows.
before we fall asleepbrain scanstipping point