Can ADHD Co-Occur with Sleep Disorders? 

Yes, ADHD sleep problems are common and can significantly impact the quality of life for adults with ADHD. People with ADHD often experience difficulties falling asleep, staying asleep, or getting restful sleep. These issues are linked to the neurological differences in attention, impulse control, and emotional regulation that are characteristic of ADHD. As a result, insomnia, restless sleep, and disruptions to the circadian rhythm are frequent challenges. 

Insomnia and ADHD 

Insomnia is a common sleep disorder that often co-occurs with ADHD. Adults with ADHD may have trouble winding down at night due to an overactive mind, racing thoughts, or heightened emotional states. This can make it difficult to both fall asleep and maintain a deep sleep throughout the night. Insomnia not only worsens ADHD symptoms like inattention and irritability but can also lead to a cycle of sleep deprivation that affects daily functioning. 

Restless Sleep 

Another issue related to ADHD sleep problems is restless sleep. People with ADHD may frequently wake up during the night or have fragmented sleep, resulting in low-quality rest. This sleep disruption often leads to daytime fatigue, which can exacerbate focus difficulties, mood swings, and impulsive symptoms that are already common in ADHD. 

Circadian Rhythm Disruption 

The circadian rhythm, or the body’s natural sleep-wake cycle, is often irregular in individuals with ADHD. Research shows that people with ADHD may have a delayed circadian rhythm, meaning they feel more awake in the late evening or night and have difficulty waking up in the morning. This disruption can make it harder to follow a regular sleep schedule, contributing to the sleep issues commonly seen with ADHD. 

Comorbidities and ADHD Sleep Problems 

Sleep disorders like insomnia and restless sleep often occur alongside other comorbidities in individuals with ADHD, such as anxiety or depression. These overlapping conditions can further complicate sleep and worsen the symptoms of both ADHD and sleep disorders. 

Improving Sleep with ADHD 

Addressing ADHD sleep problems often requires a multifaceted approach. Practising good sleep hygiene, setting a consistent bedtime, limiting caffeine intake, and exploring treatment options like cognitive-behavioural therapy for insomnia (CBT-I) can help improve sleep quality. Medication may also be adjusted if necessary to better address both ADHD and sleep issues. 

For more guidance on managing ADHD sleep problems and improving sleep quality, visit providers like ADHD Certify for personalised suppor.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to ADHD in adults.