11/13 Neurodivergence and Sleep Day 1
- Devon Tonneson

- Nov 12, 2025
- 1 min read
Updated: Jan 11
Neurodivergent people (including those with ADHD, autism, dysautonomia, PTSD, migraine, and chronic illness) experience sleep disruption at much higher rates than the general population. But it’s not just bad habits - it’s neurobiology.
This week, DNA is revisiting one of our most requested topics: how the neurodivergent brain experiences sleep differently - and why sleep can be so hard even when you’re “doing everything right.”
Day 1 is the science and mechanisms.
We’ll discuss:
The neurobiology of sleep and arousal - how the hypothalamus, brainstem, and autonomic nervous system interact to “switch off” the brain
Dysregulated circadian rhythms in neurodivergent populations - melatonin secretion delays, “night owl” wiring, and why blue light hits harder
Hyperarousal and sensory overstimulation - why silence or stillness can actually feel unsafe to the neurodivergent nervous system
Co-existing medical factors - pain, POTS, mast cell activation, and cortisol spikes
Suggested reading:
Wajszilber et al. (2018) Sleep in ADHD: A Systematic Review and Meta-Analysis - Sleep Medicine Reviews
Baker et al. (2019) Circadian rhythm and insomnia in autism spectrum disorder - Biological Psychiatry
Mathias & Low (2018) Autonomic dysfunction in chronic illness and sleep disruption - Clinical Autonomic Research
Horne (2022) Cortisol awakening response and neurodivergent stress patterns - Neurobiology of Sleep and Circadian Rhythms
