Whatstack

Guide

Sleep.

The goal and the metrics, the tools, the environment, snoring and apnea and the oxygen story, sleep studies, supplements, melatonin and drugs, jet lag, the 3am wake-up — and the far-out biohacker frontier.

Contents

  1. 01What world-class sleep actually isSleep is the highest-leverage thing you can optimise — nothing else improves your body…
  2. 02The targets & the metricsBefore you optimise, know what you're aiming at. A handful of numbers describe sleep — most…
  3. 03The tools: rings, watches & smart bedsYou can't manage what you don't measure — but consumer sleep trackers are better at some…
  4. 04Cold, dark & quietThe cheapest upgrades in sleep are environmental: a cool, dark, quiet room. Your brain…
  5. 05Light: the master switchNothing sets your body clock like light. Get it right — bright by day, dim by night — and…
  6. 06Caffeine, alcohol & food timingWhat you put in your body, and when, quietly makes or breaks the night. Three things matter…
  7. 07Prep for bed: bath, sauna, exerciseThe hour or two before bed is a runway, not a cliff. Warm your body so it can cool, move…
  8. 08Why your sleep is actually badYou slept eight hours and still feel wrecked. Usually it isn't the quantity — it's that…
  9. 09Snoring & nasal breathingSnoring is the sound of a partly collapsing airway — sometimes just a social nuisance…
  10. 10Sleep apnea & the oxygen storyThis is the hidden epidemic of sleep: close to a billion people have obstructive sleep…
  11. 11Sleep studies: home & clinicalIf you suspect your breathing is wrecking your sleep, you can now find out from your own…
  12. 12Supplements that help (and don't)The supplement aisle sells sleep harder than almost anything — and most of it…
  13. 13Melatonin: the honest doseMelatonin is the most misunderstood supplement in sleep. It isn't a sleeping pill — it's a…
  14. 14Sleep drugs: upsides & downsidesPrescription sleep drugs work — but every one is a short-term lever with a real trade-off…
  15. 15Jet lag (and the creatine angle)Jet lag isn't tiredness — it's your body clock stuck in the wrong time zone. The fix is to…
  16. 16Meditation, breathwork & CBT-IA racing mind is one of the most common reasons people can't sleep, and it's very treatable…
  17. 17The 3am wake-upYou wake at 3am and can't get back to sleep — one of the most maddening experiences there…
  18. 18Surviving the day after a bad nightOne bad night is not a catastrophe — but how you handle the next day decides whether it…
  19. 19Sleep sound & music: both sidesDoes sound actually improve sleep, or just help you relax? Honestly, both — but the…
  20. 20The far-out frontierYou asked for the crazy options — so here they are, honestly sorted into 'worth it,' 'fun…
  21. 21Build your protocolEverything in one arc, in the order that pays. Nail the free fundamentals first, then…
  22. 22Sources & how to read the evidenceThis guide was built from the primary literature — clinical guidelines, randomised trials…
Educational reference — not medical advice. This summarises published research and clinical guidance. Get red-flag symptoms assessed — loud snoring with pauses, gasping, or severe daytime sleepiness — and never start, stop, or change any medication on your own. Decide anything here with a qualified clinician.