The Science of Better Sleep: A Complete Guide

Why Sleep Matters

Quality sleep is essential for physical recovery, mental health, hormone regulation, and overall wellbeing. Adults need 7-9 hours of sleep per night for optimal health.

Understanding Sleep Cycles

Sleep occurs in 90-minute cycles with four stages:

• Stage 1: Light sleep, transition phase
• Stage 2: Body temperature drops, heart rate slows
• Stage 3: Deep sleep, physical restoration
• REM Sleep: Dreaming, memory consolidation

Sleep Hygiene Best Practices

1. Consistent Schedule: Go to bed and wake up at the same time daily
2. Dark Environment: Use blackout curtains or sleep masks
3. Cool Temperature: Keep bedroom at 65-68°F (18-20°C)
4. Limit Blue Light: No screens 1-2 hours before bed
5. Avoid Caffeine: No coffee after 2 PM
6. Wind-Down Routine: 30-minute relaxing pre-bed ritual

Common Sleep Disruptors

• Alcohol (reduces REM sleep quality)
• Late-night eating (disrupts digestion)
• Stress and anxiety
• Irregular schedule
• Poor sleep environment

Natural Sleep Aids

Consider these evidence-based supplements (consult your doctor first):

• Magnesium glycinate (200-400mg)
• L-theanine (200mg)
• Melatonin (0.5-3mg, 30 min before bed)
• Glycine (3g)

If sleep problems persist for more than 2 weeks, consult a sleep specialist. Chronic insomnia may require professional evaluation and treatment.