Try glycine supplementation for deeper sleep

Take 3g of glycine powder dissolved in water 30-60 minutes before bed.

Why It Works

Glycine is an amino acid that may lower core body temperature by increasing blood flow to the extremities, facilitating the thermoregulatory process needed for sustained sleep. Small clinical studies show improvements in subjective sleep quality and reduced next-day sleepiness.

Tips

• Inexpensive and widely available as an unflavored powder
• Has a mildly sweet taste and mixes easily in water
• Evidence is promising but based on small studies — consider it a low-risk experiment rather than a proven intervention
• Generally well-tolerated with no significant reported side effects