Behaviors1 mentions

Seven and a Half to Eight Hours of Sleep

Aim for about 7.5 to 8 hours of sleep, corresponding to roughly four to five 90-minute sleep cycles.

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“And we have about five of those per night for a perfect night's sleep, four or five, something like that. So a perfect night's sleep is seven and a half, eight hours.”

Andrew Huberman · Essentials: Use Sleep to Enhance Learning, Memory & Emotional State | Dr. Gina Poe · Sep 3, 2026 · 2:11 · YouTube ↗

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