Most people don’t need to “optimize” their sleep — they need to understand it.
In this episode of the 90% Healthy Podcast, sleep scientist Dr. Dan Gartenberg (PhD, founder of SleepSpace) breaks down why so many disciplined, high-performing people still wake up tired, and why copying sleep hacks from friends, influencers, or wearables often backfires.
We cover:
Why sleep advice should never be one-size-fits-all
The biggest mistakes people make with sleep tracking
How wearables help — and when they hurt
Why waking up groggy isn’t about willpower
The science of sleep stages, smart alarms, and sleep inertia
How light, sound, timing, and breathing shape sleep quality
When insomnia, sleep apnea, or anxiety is the real root cause
How to improve sleep without turning it into an obsession
Dr. Dan has published 20+ peer-reviewed studies on sleep and cognition and has been featured in NPR, The New York Times, and TEDx. His work focuses on small, personalized changes that improve energy, clarity, resilience, and long-term brain health.
👉 Free sleep assessment + 30-day access:
https://sleepspace.com/90percent
If sleep affects your energy, mood, focus, performance, or longevity — this episode is for you.
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Who's the 90% Healthy Podcast for?
It’s for you who wants to build a resilient body without losing your mind. If you are sick of counting every calorie, tracking too many stats, or not even wanting to start, yet are ready to stop feeling just “OK”. Klaudia and Don invite you to build resilient health that bends with real life. No rigid rules. No guilt. Just simple 1% shifts that create a strong foundation, so you can sleep like a baby, perform like a boss. and feel damn good. We cut through the noise, bring you real science (not TikTok trends), and make it easy to understand what works for the long run.
Tune in wherever you listen to your podcasts.