ADHD and insomnia: A complex relationship

Understand the relationship between ADHD and insomnia and learn how you can manage both conditions.

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Alexandra Cristina Cowell
Medically reviewed by Alexandra Cristina Cowell Clinical Support

Reading time: 5 minutes min

Uploaded on: January 27, 2026

Approximately 66.8% of adults with ADHD experience insomnia, a sleep disorder that makes it difficult to fall asleep and stay asleep throughout the night.[1] This lack of sleep can worsen ADHD symptoms.

But does ADHD cause insomnia, or does insomnia cause ADHD?

Summary

  • Many people with ADHD struggle with insomnia, making daily life harder.
  • Lack of sleep worsens ADHD, increasing hyperactivity, impulsivity, and inattention.
  • Low dopamine and norepinephrine in ADHD disrupt sleep regulation.
  • ADHD and insomnia share symptoms like poor focus, fatigue, and mood swings, making diagnosis more challenging.
  • ADHD is often managed with prescribed medication, while insomnia can be supported through sleep hygiene, cognitive therapy, or sleep-regulating supplements.

Jump to:

  1. What’s the link?
  2. Symptoms and diagnosis
  3. Management

References:

  1. Wajszilber, D., Santiseban, J. A., & Gruber, R. (2018). Sleep disorders in patients with ADHD: Impact and management challenges. Nature and Science of Sleep, 10, 453.

Reading time: 5 minutes min

Uploaded on: January 27, 2026

Dr Daniel
Medically reviewed by Alexandra Cristina Cowell Clinical Support Registered with GMC (00001) January 27, 2026 Meet Alexandra Cristina Cowell
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Written by Focused Content Team
Last updated on May 05, 2026
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