p peacefully in a hot,
stuffy room, or in a room filled with the fumes of an oil lamp turned
low. A crying fretful baby often quiets down as if by magic, providing
he is not hungry and the diaper is dry, when taken into a cool room
with fresh air. After the first two months the temperature of the
sleeping room should be fairly cool and fresh.

2. _Clothes and Bedding._ The night clothes may be irritating and
causing perspiration, while the bedding may be wrapped too snugly
about the child. If baby's neck is warm and moist, you may know that
he is too warm. If the diaper is wet it should be changed at once. One
of the worst habits a baby can possibly get into is to become so
accustomed to a wet diaper that it does not annoy him. In cold
weather he is changed under the bed clothing without exposure or
chilling. It may be the bedding is cold and, if so, it should be
warmed up by the use of the photophore previously described, or by
means of the flannel-covered hot water bottle.

3. _The Food._ Too little, too much, or the wrong kind of food, will
disturb baby's sleep. Indigestion is very easily produced in babies
who are improperly fed. For instance, the mother's milk may be lacking
in nourishment and baby may really be hungry; or, as in the case of a
bottle-fed baby, it is usually due to over feeding. Many mothers we
have known who sleep with their babies or who sleep very near them,
nurse them every time they wake up or murmur, and this soon becomes
one of the biggest causes of disturbed sleep.

4. _Spoiling._ A lighted nursery or bedroom, rocking to sleep, jolting
the carriage over a door sill or up and down, the habit of picking
baby up the moment he cries, late rompings--any and all of these may
disturb sleep, as well as unsettle the tender nervous system of the
child, thus laying the foundation for future nervousness,
neurasthenia, and possibly hysteria. This is particularly true in the
case of the children who have nervous parents.

5. _Reflex Causes._ Wakefulness is sometimes due to reflex nervous
causes such as the need for circumcision, or the presence of adenoids,
enlarged tonsils or worms. Does baby have to breathe through his
mouth? Then you may suspect adenoids or other conditions which should
be removed.

6. _Chronic Disorders._ The presence of scurvy or syphilis causes the
child to cry out sharply as if in acute pain, while in older children
tuberculosis of the spine or hip is attended by a sharp, pai