The throughline across every article below: consistency beats duration. Van Dongen's 2003 sleep-restriction study found that two weeks of six-hour nights degraded performance as much as a full night of total deprivation — while subjects rated themselves as fine. You can't feel sleep debt accurately, so the fix is structural: a fixed wake time, a caffeine cutoff, and an evening routine that starts before you're tired. Pick the section that matches your bottleneck.
Complete guide · 5 articles
Sleep Habits: The Complete Guide
Good sleep isn't decided at 11pm — it's the output of a handful of habits that run all day: when you see light, when you cut caffeine, how you wind down, and what happens when the alarm goes off. This guide collects everything we've written on sleep, grounded in named research (Walker, Van Dongen, Borbély's two-process model) rather than "just go to bed earlier" advice. Start with your weakest link; each guide stands alone.
Evening routines & waking up early
The bookends of good sleep — a wind-down that actually works and a wake-up you don't have to fight.
- 9 Benefits of Waking Up Early (Backed by Research)Waking up early is linked to better mood, focus, and consistency. Here are 9 research-backed benefits and a realistic plan to become an early riser.
- How to Wake Up at 5am: 7 Habits + Sleep Math (2026)How to wake up at 5am: the bedtime math, an 8-week shift protocol, 7 habits, and an honest section on when 5am is wrong for your chronotype.
- Evening Routine: 60-Min Wind-Down That Works (2026)A 60-minute evening routine that improves sleep and pre-loads tomorrow. 8 trackable habits split into 3 phases — shutdown, wind-down, sleep window.
Sleep hygiene
The daily checklist that decides sleep quality hours before your head hits the pillow.
Track your sleep
The apps worth using to measure what you're improving.
Free sleep tools
No signup — they run in your browser.
Turn better sleep into a daily streak
Every guide here comes down to the same thing: a fixed bedtime and wake time, kept daily. HabitBox keeps your sleep habits one tap away on your home screen — free, no account.