Your blood circulation might improve.
When you sleep on the floor, your body weight is evenly distributed, and your hips, lumbar spine, and shoulders are less strained. This allows blood to circulate freely throughout the body during the night, which can aid in the proper functioning of your organs.
Efficient blood circulation can aid in the distribution of oxygen and healthy blood throughout the body, allowing your heart, lungs, and muscles to function properly. This also allows white blood cells to be transported throughout the body as needed, which can help your immune system fight off sickness and disease more effectively.