Do not forget that during infancy life’s habits are being formed and that this period is of greater educational importance than any other of his life. The normal baby is well and happy. Babies who are properly fed and kept clean, who have plenty of sleep and fresh air and are trained in regular habits, are usually well and good-natured. On the other hand, if babies are fussy and restless most of the time, there is something wrong. Patiently search for the cause of the trouble and see that it is removed. =Sleep.= A newborn baby sleeps about nine tenths of the time. He should not be disturbed except for necessary care. After he has been made comfortable and fed he should be laid in his crib and trained to go to sleep without rocking and without a pacifier of any kind. The daily amount of sleep required for different ages is approximately as follows: First month 18 to 20 hours Second to sixth month 16 to 18 hours Sixth month 14 to 16 hours One to two years 12 to 14 hours During the first year a nap in the middle of the forenoon, and another in the afternoon, is desirable. The afternoon nap should not be so late as to interfere with the night’s sleep. A healthy baby sleeps with his mouth closed. Mouth breathing is caused by some obstruction in the air passages, usually enlarged tonsils or adenoids. Other signs of the presence of adenoids may be restlessness at night, snoring during sleep, or frequent attacks of head colds. When any one of these symptoms is present the child should be placed under a physician’s care at once; otherwise its normal growth and health may be seriously retarded. [Illustration: Back Tonsil From Which ADENOIDS GROW Adenoids AIRWAY AIRWAY TUBE TO EAR EAR TUBE BLOCKED FOODWAY FOODWAY TONSIL SWOLLEN TONSIL TONGUE TONGUE FOOD & AIR FOOD & AIR FOODWAY FOODWAY AIRWAY NOSE AND THROAT PASSAGES Left, normal; right, abnormal] The sleeping room should be dark, well ventilated, and quiet. The baby should always be protected from drafts, but the air should be fresh and cool. After being fed he should be placed on his side, and after the next feeding, laid on the opposite side. =Sleeping out.= After a baby is six weeks old he should take his naps out of doors when the weather permits. He should be protected from flies and mosquitoes and shielded from the sun, wind, and dust. Remove the shoes and loosen the clothing before placing him in his crib. If the weather is cool, his feet and body must be kept warm.