Sleep remains a major challenge for many young adults with type 1 diabetes mellitus (T1DM), a group that often faces competing demands related to glucose management, lifestyle routines, and sleep quality. In a qualitative study published in Diabetology, participants described how they actively monitor, judge, and emotionally respond to their sleep behaviors.

The study used a qualitative descriptive design guided by self-regulation theory and included 34 young adults aged 18 to 30 years living with T1DM. Data collection combined semi-structured interviews with sleep diaries, actigraphy, and continuous glucose monitoring to better understand sleep behavior patterns in daily life.

Thematic analysis identified three major domains. Sleep behavior self-monitoring reflected awareness of sleep habits and recognition of how diabetes-related factors affected rest. Sleep behavior self-judgment captured how personal expectations and broader social norms shaped views about adequate sleep and sleep health.

Sleep behavior self-evaluation described emotional responses tied to sleep outcomes. Better sleep was linked to positive mood, confidence, and motivation, whereas poor sleep was associated with frustration and reduced well-being.

The findings suggest that sleep management in young adults with T1DM involves behavioral and emotional self-regulation beyond sleep duration alone. Interventions that combine sleep education with practical self-regulation strategies may help improve perceived sleep quality and support overall diabetes management.