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Evidence-based Baby Sleep With That Sleep Doc (Part 2)

September 30, 2026 · 38 min

Show notes

Welcome back to part two of our 100th episode with That Sleep Doc, Dr Sujay Kansagra. He's a child neurologist and sleep medicine doctor at Duke University and the inventor of the Lullabee smart crib mattress. This half is where Bec finally gets to ask about a real bugbear of hers, low sleep needs, and Sally asks Sujay to diagnose her. We get into what actually decides how much sleep our babies need, why six hours of naps won't give you a twelve hour night, whether overtiredness is really a thing and how Sujay copes with the trolls in his comment section. Then it's a very slow fast five, the Lullabee versus the Snoo and the biscuit question we promised you.


Missed part one? Listen here: https://www.naptrappedpodcast.com/p/ep-100-what-is-sleep-training-that-sleep-doc


Subscribe and catch every episode at www.naptrappedpodcast.com


WHAT YOU'LL LEARN

- Why genetics set our sleep needs and how rare truly low sleep needs are

- Why a low sleep needs label doesn't mean you can't improve sleep

- How stacking too much day sleep can look like low sleep needs

- What the science does and doesn't say about overtiredness

- Why toddlers get wired, not sleepy, when they're short on sleep

- Sujay's take on Wonder Weeks, swaddling, melatonin gummies and sleep consultants

- How the Lullabee weans itself out and why it's the polar opposite of the Snoo


CHAPTERS

00:00 Welcome back, Nap Trappers

00:20 Bec's bugbear: low sleep needs

11:16 Is overtiredness real?

21:06 Trolls and the comment section

28:57 A very slow fast five

36:18 We're a good team


ABOUT NAP TRAPPED

We're Sally Woods from The Sleep Concierge and Bec Maher from The Sleep Centre. Nap Trapped is our baby sleep podcast for tired, time-poor parents who want evidence-based answers in plain language, with realistic expectations and no empty promises.


ABOUT DR SUJAY KANSAGRA

Sujay is a child neurologist and sleep medicine doctor at Duke University, aka That Sleep Doc, and the inventor of the Lullabee smart crib mattress.


LINKS

Sally (The Sleep Concierge) on Instagram: https://www.instagram.com/thesleepconcierge/

Bec (The Sleep Centre) on Instagram: https://www.instagram.com/_thesleepcentre/

Part one: https://www.naptrappedpodcast.com/p/ep-100-what-is-sleep-training-that-sleep-doc

Dr Sujay Kansagra on Instagram: https://www.instagram.com/thatsleepdoc/

Dr Sujay Kansagra on TikTok: https://www.tiktok.com/@thatsleepdoc

Dr Sujay Kansagra website: https://linktr.ee/thatsleepdoc

Dr Sujay Kansagra on YouTube: https://www.youtube.com/@thatsleepdoc

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