For many years, it was considered okay if baby's hands and feet were cool. The belief was that the coolness was due to baby's immature circulatory system, however recently the World Health Organization states that baby's hands and feet should be pink and warm. Warm and pink feet indicate that the baby is in thermal comfort. However, when baby's feet are cold and trunk is warm, it indicates that the baby is in cold stress. You can hold baby nex to you to warm them, and add socks for additional warmth. Tummy and chest should be warm and dry. A sweaty neck and back is a sign of overheating and a layer of baby's clothing should be removed.
Babies are not good at regulating their own temperatures. No blanket can naturally regulate baby's temperature for them, so parents need to touch and feel their baby to ensure baby is not too warm or too cold.
Smoke-Free Environment
Always keep baby's environment smoke-free by not smoking when pregnant, near your baby, or in an area where your baby spends time or sleeps.
Ventilation
Be sure air can circulate freely around baby's face. A fan in baby's room can increase ventilation, but should not be blowing air directly on baby.
Allow Baby to Suck on Fingers or a Pacifier
Infant researchers state it's in baby's best interest to have baby's hands within reach of mouth, so baby may self-soothe by sucking on his or her fingers. Sucking is the most organizing behavior of the newborn – it helps baby with sleep/wake control. Sucking is an early form of communication - by vigorously sucking, a baby communicates that he or she is hungry.
As your baby grows stronger or if you have a very active baby, you may tuck one or both hands down into the swaddle with their elbows flexed and offer baby a pacifier. Babies who suck on pacifiers have reduced incidence of SIDS.
As you learn more about your baby, you will find which hand position works best for your baby.