How Common Is DSPS in ADHD? 

Research shows that the DSPS prevalence of ADHD rates is significantly higher than in the general population. Delayed sleep phase syndrome (DSPS) is a circadian rhythm disorder where a person’s natural sleep cycle is shifted later than usual, making it difficult to fall asleep and wake up at socially expected times. For people with ADHD, this shift can be particularly disruptive, as it compounds the challenges already associated with attention regulation and executive functioning. 

DSPS as an ADHD Sleep Disorder 

Studies suggest that up to half of individuals with ADHD may experience some form of delayed sleep phase. This makes DSPS one of the most common ADHD sleep disorders. Symptoms often include: 

• Staying awake until the early morning hours. 

• Struggling to wake up for school or work. 

• Daytime fatigue worsens inattention and mood swings. 

Because these difficulties overlap with ADHD traits, DSPS may go unrecognised, being mistaken for procrastination, poor time management, or lack of motivation. 

Why It Matters 

Understanding the delayed sleep phase connection is important, as treating DSPS can reduce the severity of ADHD symptoms. Interventions such as light therapy, melatonin supplementation, and strict sleep routines can help reset the circadian rhythm. 

The high DSPS prevalence in ADHD populations shows just how closely sleep and attention are linked. Addressing DSPS alongside ADHD treatment can improve focus, emotional regulation, and overall wellbeing. For more on ADHD sleep disorders like DSPS, consider reaching out to providers like ADHD Certify.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Sleep disorders.