An increasing number of people aren’t getting enough sleep, and researchers are trying to figure out how to help, reports Canada’s University Affairs.

Twenty years ago, sleep clinics were a rarity. Today, they are a growth industry, with some 3,000 in North America alone. In Canada, many clinics are attached to Canadian universities, like this one in Vancouver – the Leon Judah Blackmore Centre for Sleep Disorders – which sees about 40 patients a day from across B.C., the Yukon and parts of Alberta.