Step two: Separate the pillows so your stomach will be able to lie in between them – at least a hand’s width apart.
Step three: Lie face down on top of the pillows ensuring your chest and pelvis are supported with your stomach in between to allow you to breathe. If you feel an increased strain on your lower back bring the two pillows closer together.
Step four: Position your head comfortably below your chest level, your head may rest on either side.
However, he did not recommend trying proning unless you are suffering from a “critical” respiratory condition.