What position of comfort helps a patient with orthopnea to sleep?

The position of comfort for a patient with orthopnea, which is difficulty breathing when lying down, is primarily to aid in respiratory function. When a patient sits up in bed, gravity helps to reduce the strain on the respiratory muscles and allows for better lung expansion. This position alleviates pressure on the diaphragm, making breathing more comfortable and effective, thus enhancing oxygenation.

While some patients may find relief using other positions, such as lying on their side or propped up with pillows, sitting up directly provides the most significant benefit by allowing for the greatest ease of breathing. Lying flat on the back generally exacerbates symptoms of orthopnea, making it a less favorable position for patients with this condition.