28/08/2026
A massive study of over 730,000 people found that total sleep duration bottoms out from the early 30s to early 50s.
The researchers points to career demands and childcare as the likely drivers, not biology. So your 30’s get hit from both directions at once: your body is producing less deep sleep on its own, right as work and family life start eating into the hours you do get.
Not great, but Kimba can help. Swipe to learn more.
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