
While dark morning and evenings are inevitable in winter, turning the clocks back does afford an extra hour of (much needed) light in the morning. Plus we get an extra hour of the weekend, so we're certainly not complaining.
The British Sleep Society, a professional organisation for medical, scientific and health workers, says our circadian and sleep health are affected positively by the availability of natural daylight during the morning. So while we may initially feel a bit groggy as our sleep schedule changes, the clocks going back can help us sleep better in the long run.