Rhonda Patrick· PhD
So the determinants of good sleep are timing, intensity and duration. So duration is easy, and that's like, "Well, how much sleep do I need?" and that's the one that most people go to readily, "How much time should I spend in bed?" That's one important component. That one is really dependent on you, and it changes across the lifespan, and it can also change on whether you're fighting an infection, or doing really intense physical activity; you might need more than your average.