How much deep sleep do you need for recovery and hormone optimization?
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Dec 21, 2025 · 9 min read
You track your total hours in bed, but if you are missing the critical slow-wave phase, your testosterone, memory, and heart health will suffer. Here is the clinical breakdown of how much deep sleep you actually need. “Many men obsess over getting eight hours of clock time, but sleep architecture is what dictates your physical ...