Nearly Half of Type 1 Diabetics Have Poor Sleep Quality, Study Reveals

Sleep problems are common among people with diabetes, but this Canadian study provides the most comprehensive look yet at sleep quality in type 1 diabetes. Researchers analyzed data from 1,322 adults in the BETTER Registry, finding that nearly half struggle with poor sleep quality.

The study used the validated Pittsburgh Sleep Quality Index, revealing an average score of 6.0 (scores above 5 indicate poor sleep). Women were 42% more likely to have poor sleep than men, and those with overweight or obesity had 38% higher odds of sleep problems.

Psychological factors played a major role. People with moderate-to-severe depression were over six times more likely to have poor sleep, while greater fear of hypoglycemia also increased risk. Behavioral patterns mattered too: regular bedtime snacking increased poor sleep odds by 71%, cannabis use by 58%, and insufficient exercise (under 150 minutes weekly) by 56%.

These findings suggest sleep problems in type 1 diabetes aren't just about blood sugar fluctuations—they're tied to a complex web of mental health, lifestyle, and metabolic factors. Poor sleep can worsen glucose control, creating a vicious cycle that impacts both diabetes management and overall health.

The research points toward multi-faceted interventions addressing depression, promoting regular exercise, improving sleep hygiene, and managing diabetes-related anxiety as potential pathways to better sleep and health outcomes in this population.