Understanding the Risk Factors for SIDS

Why Safe Sleep is Essential

When it comes to your little ones, their safety is your number one priority. Getting to grips with the risk factors of Sudden Infant Death Syndrome (SIDS) is a key part of this. While the exact cause of SIDS remains a mystery, research has shed light on several factors that can up the ante for your baby. The silver lining? Some of these factors are totally under our control, and a few simple tweaks can make a world of difference in keeping your baby safe.

By sticking to safe sleep guidelines, you're crafting a safer snooze environment for your baby, and cutting down the risk of SIDS and other sleep-related infant deaths. Let's delve into these risk factors and get to grips with why these safe sleep habits are so important.

Changeable vs. Unchangeable Risk Factors for SIDS

SIDS risk factors fall into two categories: those we can influence, and those we can’t. While some factors are out of our control—such as preterm birth—there are many things we can do to reduce the risks, starting with how we help our babies sleep.

Birth-Related Factors

There are certain risk factors for SIDS that are beyond our control. It is important for parents to be aware of these so they can take extra precautions. Babies who are born prematurely (before 37 weeks of pregnancy) or babies with low birth weights (less than 5 pounds 8 ounces) are at a higher risk of SIDS. These little ones may be more delicate and their body systems might not be as mature as full-term babies, making them more susceptible to SIDS and other complications.

While we can't alter these birth-related factors, what we can do is ensure these tiny warriors have the safest possible environment to sleep in. This means we need to be extra meticulous about adhering to safe sleep practices.

Sleep Position: One of the Most Crucial Factors

One of the most effective, yet easiest steps you can take is to ensure they sleep on their back - not their tummy or side. It's been proven that babies who sleep on their stomachs or sides have a higher risk of SIDS. And the risk is even greater for babies who usually sleep on their backs but are occasionally placed on their stomachs or sides.

When your little one sleeps on their back, they can breathe easier as their airways are open. It also helps them to regulate their body temperature, reducing the risk of overheating. Plus, their protective reflexes work best when they're on their backs, further preventing choking or suffocation.

The rule to follow is simple: “Back to sleep” every time—whether it’s for a nap or overnight sleep.

Keep Baby’s Face and Head Uncovered

Babies are little heat-generating machines, with most of that warmth escaping right from their tiny heads. That's why it's crucial to keep their head and face clear while they're snoozing. Forget about hats, blankets or other cover-ups, they can actually raise their body temperature too much or even pose a suffocation risk.

To keep your little one safe and snug, clear away any loose bedding, toys or pillows from their sleep zone. A snug sleep sack that leaves their arms and face free is a great alternative to blankets. A clear head and face not only helps regulate their temperature, but also keeps their sleep environment comfy and safe.

Prenatal and Pregnancy Factors

Giving your baby the best possible start begins with taking care of yourself during pregnancy. A significant factor that can impact your baby's well-being is smoking - and this includes secondhand smoke, too. Babies of moms who steered clear of cigarettes during pregnancy have a lower risk of Sudden Infant Death Syndrome (SIDS).

But it's not just about saying no to smoking, it's also important to avoid alcohol and drug use during pregnancy. Regular prenatal care, starting early and continuing throughout your pregnancy journey, can further reduce the risk of SIDS. By staying informed and maintaining a healthy lifestyle during pregnancy, you're not just taking care of yourself, you're also giving your baby a healthier start in life.

Safe Sleep Environment: It Makes All the Difference

The environment in which your baby sleeps is one of the most important factors in preventing SIDS. Soft surfaces, like adult mattresses, couches, or pillows, pose a significant risk to infants. Babies who sleep on these types of surfaces are at a higher risk for both SIDS and suffocation-related deaths.

Your baby should sleep on a firm, flat surface, such as a crib or bassinet that meets current safety standards. Avoid using soft, fluffy bedding, as it can easily obstruct your baby’s breathing. A safe mattress, along with securely tucked lightweight bedding or a well-fitted sleeping bag, helps keep your baby safe while they sleep. By following these simple guidelines, you can greatly reduce the risk of SIDS and other sleep-related deaths.

Temperature: Keeping Baby Comfortable, Not Overheated

Maintaining the right temperature in your baby’s sleep environment is key to reducing the risk of SIDS. Babies are more prone to overheating than adults, especially if they are overbundled or placed in a room that’s too warm. Overheating can cause a baby’s body temperature to rise dangerously, increasing their risk of SIDS.

To avoid overheating, dress your baby in light, breathable clothing, and avoid adding too many blankets or layers. Keeping their face and head uncovered is also crucial for regulating body temperature. The ideal room temperature for babies is between 18°C to 20°C (or 64°F 68°F), which allows them to sleep comfortably without the risk of overheating.

Breastfeeding and Pacifiers: Surprising Sleep Protectors

Breastfeeding offers a range of benefits, including lowering the risk of SIDS. Studies have shown that babies who are breastfed, even partially, are at a lower risk of SIDS than those who are exclusively formula-fed. Breastfeeding for as long as possible helps strengthen your baby’s immune system and protects against respiratory infections, which are sometimes linked to SIDS.

Similarly, offering your baby a pacifier during sleep can provide additional protection against SIDS. While the exact reason for this is unclear, research suggests that pacifiers help keep a baby’s airway open, reducing the risk of suffocation. However, it’s important to wait until breastfeeding is well-established before introducing a pacifier, and you should never force your baby to take one if they’re not interested.

Bed Sharing and Sleep Location

Where your baby sleeps plays a critical role in their safety. While many parents may feel inclined to share a bed with their baby, especially in the early months, bed-sharing increases the risk of suffocation, especially on soft surfaces or when a caregiver is exhausted. Babies who sleep in the same room as their parents, but on separate sleep surfaces like a crib or bassinet, are at a lower risk of SIDS.

Room-sharing is the recommended practice for the first six months. Having your baby close by allows you to monitor them throughout the night while ensuring they have a safe, separate sleep space. Avoid bed-sharing, especially on couches or armchairs, as these surfaces pose a particularly high risk of suffocation or entrapment.

If you find yourself in a situation where bed-sharing feels like the safer option—perhaps your baby won't settle in their own space and you're so exhausted that you risk falling asleep in a dangerous spot like a couch or armchair—then it's crucial to follow safer bed-sharing practices. Take a look at our Bed-Sharing Safe Sleep 7 blog for detailed tips on how to make bed-sharing as safe as possible.

However, remember that bed-sharing is never entirely safe and should only be considered as a last resort when it's the safer alternative to an even riskier sleeping arrangement. Your baby's safety is always the top priority, so aim for safer sleep practices whenever possible.

Why Safe Sleep Practices Matter

Safe sleep practices are critical in reducing the risk of SIDS and other sleep-related infant deaths. By following the recommendations below, you can create a safer environment for your baby:

  • Back to Sleep: Always place your baby on their back for both naps and nighttime sleep. This position helps keep their airways open and reduces the risk of suffocation or overheating.

  • Clear Sleep Space: A firm mattress with no pillows, toys, or loose bedding helps keep your baby’s sleep environment safe and free from hazards.

  • Room-Sharing, Not Bed-Sharing: Keep your baby in the same room as you but in their own crib or bassinet to minimize the risk of suffocation, entrapment, or SIDS.

  • Keep Baby Smoke-Free: Avoid smoking during pregnancy and ensure a smoke-free environment after birth to protect your baby’s health and reduce their risk of SIDS.

By understanding and addressing these risk factors, parents and caregivers can create a safe, nurturing sleep environment that helps protect their baby and reduces the chances of SIDS. Remember, every little step you take towards creating a safe sleep space has a big impact on your baby’s health and well-being.


If you're feeling unsure about your little one's sleep or need personalized support, I'm here to help! Schedule a free discovery call, join one of our informative workshops, or book a consultation (or newborn consultation) with me at Dreamland Coaching. Whether you need guidance on creating a safer sleep environment or managing tricky sleep habits, I'm dedicated to helping you and your baby get the rest you deserve.

For more details, check out our packages page and see how we can support your family through every stage of your little one's sleep journey!

Caity B

Hi, I’m Caitlin Barrett (Caity), a passionate advocate for better sleep for both little ones and their parents. With over 10 years of experience across being an early childhood educator and a devoted mom to two wonderful children—a 5-year-old son and a 3-year-old daughter—I’m passionate about sharing the knowledge I've gained, both professionally and personally, to help families achieve better sleep.

https://www.dreamlandcoaching.com
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