Why it can be harder to sleep during the summer – and what you can do about it

The amount of daylight we get in the summer can seriously mess with our body clock. Lysenko Andrii/ Shutterstock

As the days stretch long and the sun lingers late into the evening, most of us welcome summer with open arms. Yet for a surprising number of people, this season brings an unwelcome guest: insomnia.

For these people, summer is a time of tossing and turning, early waking – or simply not feeling sleepy when they should. Far from just being a nuisance, this seasonal insomnia may chip away at mood...