An English Physician, Dr. J. Mortimer Granville, in his recently-published work upon sleep, says:— “A constrained or uncomfortable position will often prevent repose. Lying flat on the back, with the limbs relaxed, would seem to secure the greatest amount of rest for the muscular system. This is the position assumed in the most exhausting diseases, and it is generally hailed as a token of revival when a patient voluntarily turns on the side; but there are several disadvantages in the supine posture which impair or embarrass sleep. Thus, in weakly states of the heart and blood-vessels, and in certain morbid conditions of the brain, the blood seems to gravitate to the back of the head, and to produce troublesome dreams. In persons who habitually, in their gait or work, stoop, there is probably some distress consequent on straightening the spine. Those who have contracted chests, especially persons who have had pleurisy and retain adhesions of the lungs, do not sleep well on the back. Nearly all who are inclined to snore do so while in that position, because the soft palate and uvula hang on the tongue, and that organ falls back so as to partially close the top of the wind-pipe. It is better, therefore, to lie on the side, and, in the presence of special chest diseases, rendering it desirable to lie on the weak side so as to leave the healthy lung free to expand, it is well to choose the right side, because when the body is thus placed food gravitates more easily out of the stomach into the intestines, and the weight of the liver does not compress the upper portion of the intestines. A glance at the plate of the visceral anatomy will show how this must be. Many persons are deaf in one ear, and prefer to lie on that particular side; but, if possible, the right side should be chosen, and the body rolled a little forward, so that any saliva which may be secreted shall run easily out of the mouth, if not unconsciously swallowed. Again, sleeping with the arms thrown over the head is to be deprecated; but this position is often assumed during sleep, because circulation is then free in the extremities, and the head and neck and the muscles of the chest are drawn up and fixed by the shoulders, and thus the expansion of the thorax is easy. The chief objections to this position are that it creates a tendency to cramp and cold in the arms, and sometimes seems to cause headaches during sleep and dreams. These small matters often make or mar comfort in sleeping.”