Quite the contrary. Sitting on a floor pillow and consequently, the floor can have many benefits. On the other hand, it can be very painful and uncomfortable when it is done incorrectly. This issue is worse if you have existing joint or bone issues. It is also worse if you have existing pain, such as back pain. Sitting incorrectly can even lead to bad posture and lower back pain. To avoid these, make sure you do not hunch your back while sitting. Consistently keep your spine in a neutral position and place the weight on your hips rather than your feet.