Overview
- Expert interviews and book releases, which ran on Saturday, pushed a new public message that sleep guidance should focus less on a fixed hour count and more on when people sleep and how complete their sleep cycles are.
- Specialists say most adults still need about seven to nine hours, but restorative benefit depends on completing multiple light, deep and REM cycles each night and tolerating brief micro‑awakenings that are normal.
- Practical, non‑drug measures are highlighted: keep bedrooms cool (about 19–21°C), fully dark, limit evening screens and choose supportive mattresses and pillows to aid thermoregulation and posture.
- Short naps of roughly 20–26 minutes can boost alertness without harming night sleep when used sparingly, while single‑night melatonin or sedatives rarely fix chronic insomnia and should not replace behavioral treatment.
- Consumer sleep trackers provide rough patterns but cannot read brain waves and can misclassify stillness as sleep, so experts recommend clinical assessment or validated questionnaires for persistent problems and CBT‑I or other targeted therapies when needed.