It is common knowledge that sleep is hard to come by if you’re staying overnight at a hospital. But, a new study shows just how bad the problem can be. According to the World Health Organization, the noise level in hospital rooms should not go above 30 to 40 decibels. However, a new study conducted by the University of Chicago shows that most noise levels at most hospitals rise well above the recommended levels, with one hospital even reaching as high as 80 decibels. The loudest interruptions came from intercom announcements and equipment alarms. In the end, it was found that participants got up to an hour-and-a-half less sleep than they would when sleeping at home.