The proper lying body alignment for Hatha yoga is to open the feet wider than the hips, open the arms wider than the feet, turn the palms up and pull the chin downward. Assume this lying position during yoga session and while sleeping with helpful advice from a Hatha yoga instructor in this free video on yoga techniques.

Expert: Marcelle Lee
Bio: Marcelle Lee, a certified Hatha yoga instructor for more than 20 years, has given workshops, classes and private instruction to people of all walks of life.

Source