Wellbeing

The Sleep Optimization Guide

Dr. Rachel Foster
5 November 2024

Sleep isn't a luxury. It's the foundation of health, performance, and wellbeing.

The Environment

Temperature

Cool is better. 16-19°C is optimal for most people.

Darkness

Blackout curtains or eye mask. Even small amounts of light disrupt sleep.

Noise

White noise or earplugs if needed. Silence or consistent sound—not intermittent noise.

The Routine

Go to bed and wake at the same time daily. Yes, even weekends. Your body craves consistency.

The Wind-Down

Start 60 minutes before bed:

  • Dim the lights
  • No screens (or use blue light filters)
  • Cool shower or bath
  • Read or gentle stretching
  • No work, no news, no stress

The Habits

Morning

Get sunlight within 30 minutes of waking. This sets your circadian rhythm.

Afternoon

No caffeine after 2pm. Its half-life is 5-6 hours.

Evening

Finish eating 3 hours before bed. Avoid alcohol—it disrupts sleep quality.

The Mindset

Can't sleep? Don't fight it. Read until drowsy. Lying awake frustrated just creates anxiety around sleep.

Track your sleep for a week. Notice patterns. Small adjustments compound into significant improvements.