Do you wake up repeatedly throughout the night to go to the bathroom? If so, you’re not alone. It’s believed that more than 50 million people in the U.S. suffer from a condition known as nocturia, which is the inability to achieve essential rest because of frequent urination. This begs the question, though, is it a urinary or a sleep problem? Keep reading to discover the underlying causes of this common disorder and how a sleep dentist can help.