Sitting is the optimal and recommended position because it provides the perfect balance of focus and relaxation. When the body is in an upright position the mind and body are more attentive. When the body is lying down it naturally wants to fall asleep and therefore, we are unable to observe in a conscious manner. We do offer specific meditations where lying down is suggested such as Breathe & Sound meditations classes. If you need to lay down due to medical issues, we have props that will support you. Most important thing is that you are comfortable.