Highlights

• SWS suppression during nighttime sleep leads to a significant increase in salivary melatonin.

• Elevated melatonin appears to play a key role in glucose tolerance changes after disturbed sleep.

• Melatonin’s effect on morning glucose tolerance depends on its secretion timing.

• Durations of REM sleep and nocturnal awakenings appear to play an important role in melatonin secretion and glucose tolerance.

• Glucose tolerance is associated with the total duration of undisturbed sleep and the length of REM sleep rather than the amount of SWS.

https://www.sciencedirect.com/science/article/abs/pii/S1389945719316405