Bryan Johnson· Author
My personal experience is that 50% or more of my Deep happens in the first two hours of the night. If I miss it; it's gone forever.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
My personal experience is that 50% or more of my Deep happens in the first two hours of the night. If I miss it; it's gone forever.
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Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
good reminder to be on time to get full deep sleep cycle.
I get the majority of my deep sleep in the first part of the night. If I miss it, I can’t get that deep back.
See in my data above that all of my deep sleep happened in the first 3rd of the night. Sometimes I'll get a bit more deep sleep in the early parts of the morning too but it's always heavily weighted towards the beginning of the night.
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