Adding sleep support did not improve glucose control
An eight-week randomized trial in 196 adults with prediabetes and short sleep found no significant added glucose or weight-loss benefit over lifestyle support alone.
8 weeks
Limit: The trial lasted only eight weeks
Edited by Boris Djordjevic · AgingResearch.News
In a randomized trial of 196 adults with prediabetes and habitually short sleep, researchers compared eight weeks of lifestyle support with the same support plus a behavioral sleep program. They delivered both programs individually by video call. The main outcome was the share of time glucose sensor readings exceeded 140 milligrams per deciliter.
The groups did not differ significantly in changes in this glucose measure. Both groups slept longer and lost weight, with no significant differences between them. Added sleep support improved self-reported sleep quality and daytime sleepiness more than lifestyle support alone. An unplanned analysis linked shifts to earlier sleep onset, but not longer sleep, to greater weight loss, regardless of group assignment.
Why it matters
Diabetes prevention matters for health as people age. The findings suggest sleep timing is a promising target to test in future prevention trials.
Caveats
The trial lasted eight weeks and measured glucose readings, not whether participants developed diabetes. The sleep-timing association came from an unplanned analysis and does not establish cause and effect.
