Sleep hygiene isn't about taking a shower before bed. It's the habits and environment that set you up for quality sleep. Here's a practical checklist of what actually works.
The Sleep Hygiene Checklist
1. Consistent Sleep Schedule
Your body has a circadian rhythm. It works best with consistency.
- Same bedtime every night (within 30 minutes)
- Same wake time every morning (yes, weekends too)
- Aim for 7-9 hours of sleep opportunity
Why it works: Your brain releases sleep hormones at predictable times. Messing with the schedule confuses this process.
2. Cut Caffeine After 2 PM
Caffeine has a 5-6 hour half-life. That means:
- 2 PM coffee → 50% still in your system at 8 PM
- 4 PM coffee → 50% still in your system at 10 PM
- Even if you fall asleep, quality suffers
3. No Screens 1 Hour Before Bed
Blue light suppresses melatonin production. But it's not just the light—screens are mentally stimulating.
- TV, phones, tablets, computers all count
- If you must use them: blue light filters help somewhat
- Better: read a physical book, stretch, meditate
4. Cool, Dark, Quiet Room
Your sleep environment matters:
- Temperature: 65-68°F (18-20°C) is optimal
- Darkness: Blackout curtains or eye mask
- Quiet: Earplugs or white noise machine
Your core temperature needs to drop for sleep onset. A warm bath 1-2 hours before bed can help by triggering a cooling response after.
5. Limit Alcohol
Alcohol is not a sleep aid. It:
- Fragments sleep architecture
- Suppresses REM sleep (dreaming)
- Causes middle-of-the-night awakenings
- If drinking: stop 3+ hours before bed
6. No Large Meals Before Bed
Digestion competes with sleep. Guidelines:
- Last large meal: 3+ hours before bed
- Light snack is fine if hungry
- Avoid spicy foods (reflux risk)
- Limit fluids 2 hours before (bathroom trips)
7. Morning Light Exposure
Light anchors your circadian rhythm:
- Get 10-30 minutes of natural light within an hour of waking
- Don't wear sunglasses during this time
- Cloudy days still work
- This sets your "clock" for the day
8. Wind-Down Routine
Create a 30-60 minute buffer between activity and sleep:
- Dim lights around the house
- Stretching or gentle yoga
- Reading (physical book)
- Meditation or breathing exercises
- Same routine every night
9. Bedroom = Sleep Only
Your brain makes associations. Keep work, stress, and screens out of the bedroom.
- No working in bed
- No TV in bedroom (if possible)
- If you can't sleep after 20 minutes: get up, do something calm, return when sleepy
10. Exercise Timing
Exercise improves sleep quality, but timing matters:
- Morning/afternoon exercise: Best for sleep
- Evening exercise: Fine if not too intense
- Avoid vigorous exercise within 2 hours of bedtime
Quick-Start Action Plan
Don't change everything at once. Pick 2-3 to start:
- Week 1: Consistent wake time + no screens 1 hour before bed
- Week 2: Add caffeine cutoff at 2 PM
- Week 3: Optimize bedroom (temperature, darkness)
- Week 4: Add morning light exposure
When to Seek Help
If you've optimized sleep hygiene for 2-4 weeks and still struggle:
- Consider sleep study for sleep apnea
- Check for underlying health issues
- Evaluate medications
- Consult sleep specialist
The Bottom Line
Sleep hygiene works. The research is clear that environment and habits significantly impact sleep quality. You don't need to be perfect—implementing just 3-4 of these consistently will likely improve your sleep.
Start with the easiest wins for your situation. Small changes compound into better rest.
Want better sleep naturally? Check the sleep supplements guide for what actually helps.