Exploring the link between sleep and cognitive disengagement syndrome (CDS) in young adults: Integrating the role of ADHD.
Poor sleep quality drives both hyper-impulsive ADHD traits and CDS day-dreaming in young adults, so screen sleep first.
01Research in Context
What this study did
The team gave online surveys to 419 Turkish college students.
They asked about sleep quality, ADHD traits, and day-dreamy "cognitive disengagement."
Half the group had a known ADHD or autism diagnosis.
What they found
Bad sleep tied most tightly to hyper-impulsive ADHD symptoms.
It also linked to CDS day-dreaming, especially in women.
The worse the sleep score, the higher the inattention and mind-wandering ratings.
How this fits with other research
Wang et al. (2024) extends these adult survey results into kids.
Their RCT shows 12 weeks of active play shortened sleep-latency and sharpened cognitive flexibility in elementary children with ADHD.
Together the papers say: fix sleep (or the habits that feed it) across ages and both mind-wandering and executive skills can improve.
Limoges et al. (2013) used lab tasks instead of surveys.
They still found poor sleep predicted slower reaction times in autistic young adults, matching Hesna’s correlation pattern even with a different diagnosis.
The effect looks robust across methods and labels.
Why it matters
If a client presents both ADHD and CDS, start with a one-week sleep log.
Target bedroom darkness, phone-off time, and morning exercise.
Track whether hyper-impulsive outbursts and day-dream minutes drop before you add more complex interventions.
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02At a glance
03Original abstract
OBJECTIVE: This study aimed to: (1) compare sleep quality and sleep-related parameters in a Turkish adult population with and without CDS and ADHD symptoms; and (2) re-examine the relationship between CDS and sleep by exploring potential associations between sleep problems and CDS symptoms, while also examining the separate roles of sluggishness and daydreaming, as well as possible gender differences. METHOD: The study included 274 participants (age:18-35, 70.4 % female). The Adult CDS Ratings Scale, the Adult ADHD Self-Report Scale (ASRS), and the Pittsburgh Sleep Quality Index were used. The data were analyzed using SPSS 22 and AMOS 23. Statistical analyses included ANOVA with post-hoc Tamhane's test, Mann-Whitney U test, Spearman Correlation Analysis, and structural equation modeling with path analysis. Linear regression analysis was conducted to identify factors influencing daydreaming. RESULTS: The study yielded four key findings: CONCLUSIONS: This study is among the first to explore the relationship between CDS symptoms and sleep problems in young adults, accounting for ADHD. Our findings highlight the significant association of hyperactivity/impulsivity and daydreaming with sleep quality, as well as the relationship between poor sleep quality and increased daydreaming and sluggishness, though to a lesser extent than ADHD symptoms. Notably, gender differences emerged, with poor sleep quality affecting CDS symptoms primarily in women, while sluggishness decreased with age in men. These results underscore the importance of considering sleep issues in the context of CDS and ADHD, particularly with attention to gender-specific patterns.
Research in developmental disabilities, 2025 · doi:10.1016/j.ridd.2025.105000