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Reduce the Risk of Sudden Infant Death Syndrome (SIDS)
Sudden Infant Death Syndrome (SIDS) is the sudden and unexplained death of an infant under one year of age. SIDS,
sometimes known as crib death, strikes nearly 5,000 babies in the United States every year. Doctors and nurses don't
know what causes SIDS, but they have found some things you can do to make your baby safer.
Healthy Babies Should Sleep on Their Back
One of the most important things you can do to help reduce the risk of SIDS is to put your healthy baby on his or her
back to sleep. Do this when your baby is being put down for a nap or to bed for the night.
This is new. Your mother was told and, if you have other children, you may have been told that babies should sleep on
their tummy. Now, doctors and nurses believe that fewer babies will die of SIDS if most infants sleep on their back.
Check With Your Doctor or Nurse
Most babies should sleep on their back. But a few babies have health conditions that might require them to sleep on
their tummy. If your baby was born with a birth defect, often spits up after eating, or has a breathing, lung or heart
problem, be sure to talk to a doctor or nurse about which sleep position to use.
Some mothers worry that babies sleeping on their back may choke on spit-up or vomit during sleep. There is no
evidence that sleeping on the back causes choking. Millions of babies around the world now sleep on their back and
doctors have not found an increase in choking or other problems.
Some babies at first don't like sleeping on their back, but most get used to it and this is the best sleep position for your
baby. Although back sleeping is the best sleep position, your baby can be placed on his or her side. Side position
does not provide as much protection against SIDS as back sleeping, but it is much better than placing your baby on
his or her tummy.
Your baby can be placed on his or her stomach when awake. Some "tummy time" during awake hours is good for
your baby. Talk to your doctor or nurse if you have questions about your baby's sleep position.
Other Things You Can Do to Help Reduce the Risk of SIDS
Bedding. Make sure that your baby sleeps on a firm mattress or other firm surface. Don't use fluffy blankets or
comforters under the baby. Don't let the baby sleep on a waterbed, sheepskin, a pillow, or other soft materials. When
your baby is very young, don't place soft stuffed toys or pillows in the crib with him or her. Some babies have
smothered with these soft materials in the crib.
Temperature. Babies should be kept warm, but they should not be allowed to get too warm. Keep the temperature in
your baby's room so that it feels comfortable to you.
Smoke-free. Create a smoke-free zone around your baby. No one should smoke around your baby. Babies and
young children exposed to smoke have more colds and other diseases, as well as an increased risk of SIDS.
Doctor or clinic visits. If your baby seems sick, call your doctor or clinic right away. Make sure your baby receives
his or her shots on schedule.
Prenatal care. Early and regular prenatal care can also help reduce the risk of SIDS. The risk of SIDS is higher for
babies whose mothers smoked during pregnancy. For your baby's well being, you should not use alcohol or drugs
during pregnancy unless prescribed by a doctor.
Breastfeeding. If possible, you should consider breastfeeding your baby. Breast milk helps to keep your baby
Enjoy your baby! Remember, most babies are born healthy and most stay that way. Don't let the fear of SIDS spoil
your joy and enjoyment of having a new baby.
Best Sleep Position
Make sure your baby goes to sleep on his or her back. This provides the best protection against SIDS.
Alternative Sleep Position
If you choose to use the side sleep position, make sure your baby's lower arm is forward to stop him or her from
rolling over onto the stomach.
If you have any questions about your baby's sleep position or health, first talk to your doctor or nurse. For more
information about the Back to Sleep campaign, call free of charge, 1-800-505-2742. Or you can write to: Back to
Sleep, P.O. Box 29111, Washington, D.C. 20040.
What is SIDS?
Sudden Infant Death Syndrome (SIDS) is the sudden and unexplained death of an infant under one year of age.
SIDS, sometimes known as crib death, is the major cause of death in babies from 1 month to 1 year of age. Most
SIDS deaths occur when a baby is between 1 and 4 months old. More boys than girls are victims, and most deaths
occur during the fall, winter and early spring months.
The death is sudden and unpredictable; in most cases, the baby seems healthy. Death occurs quickly, usually during a
After 30 years of research, scientists still cannot find one definite cause or causes for SIDS. There is no way to predict
or prevent SIDS. But, as this brochure describes, research has found some things that can help reduce the risk of
This information is from the U.S. Public Health Service, American Academy of Pediatrics, SIDS Alliance, and
Association of SIDS and Infant Mortality Programs.
Information provided by NIH.