Why is good luck sleeping facing south?

Sleeping with your head facing south is believed to promote good luck and positive energy in some cultures, particularly in Vastu Shastra and Feng Shui. These traditions suggest that aligning your body in this way can enhance overall well-being, improve sleep quality, and attract prosperity. Additionally, it is thought to align with the Earth's magnetic field, potentially influencing sleep patterns. However, these beliefs are largely anecdotal and may vary by individual preference.