Knee pain at night is a common issue that disrupts sleep and affects daily life. Many people wonder, "Why do my knees hurt at night?" Understanding the causes is the first step to finding relief. Various factors can lead to knee pain when sleeping, including arthritis, injuries, and poor sleeping posture. These issues can make knee pain worse at night, leaving you waking up with aching knees. Identifying the root cause of your knee pain is crucial for effective treatment. This article will explore common causes and offer solutions to alleviate discomfort.