When We sleep Soundest.

New Zealand Graphic, Volume XXXVI, Issue 20, 19 May 1906, Page 5

When We sleep Soundest.

Tiie peiiod oi deepest sleep varies from three o clock to live. An hour or two -after going to bed one generally sleeps very soundly; then the slumber grows gradually lighter, and it is easy enough to waken anyone at one or two o’clock. But when lour o’clock conies a very deep state of somnolence is generally reached. •Strangely, at the corresponding time in the afternoon, most people feel a little tired. Whether it be due to the electrical condition of the atmosphere, or to the position of the sun, no one, knows. But it is a fact that the nervous system, brain, and lungs are most vigorous from about ten or eleven o'clock (night and morning) to twelve or one.