"옆으로 자는 사람" translates to "a person who sleeps on their side." This sleeping position is common and can be beneficial for various reasons. Side sleeping can help reduce snoring and improve breathing during sleep. It is also often recommended for pregnant individuals, as it can enhance blood circulation to the fetus. However, side sleeping may lead to certain issues, such as shoulder and hip pain. It is important for side sleepers to choose a suitable mattress and pillow to support their body properly. Additionally, using a body pillow can help maintain spinal alignment during sleep.