Do Scandinavian babies really nap outdoors in the cold? Immune system hack or parental myth?

When you hear the phrase "cold exposure" your mind might instinctively recoil at the thought of plunging into icy waters or bundling up for a winter run.

After all, South Africans are more accustomed to basking in the sun than braving the cold. While South Africans are known for bundling up babies at the first sign of a cold front, a growing global parenting trend suggests otherwise.

Scandi-style parenting, which encourages babies to nap outdoors in the cold, is making waves on social media platforms like TikTok and Instagram.

Parents in Nordic countries such as Denmark, Finland, and Norway have long embraced this practice, believing that fresh air improves sleep quality and strengthens the immune system. 

Cold exposure has long been linked to a wide range of health benefits. Research shows that immersing yourself in cold temperatures can boost the immune system, reduce inflammation, and even improve mental health.

According to the Vhdehi Institute of Medical Sciences and Research, inhaling crisp, cold air triggers vasoconstriction - a process where blood vessels narrow, reducing swelling and clearing mucus from the nasal passages and lungs.

This natural response not only helps the body fight off infections but also creates a powerful immune system boost.

In a time when many are seeking ways to ward off illness, could a bracing dip or a cold-weather jog be part of the solution?

The origins of this tradition date back to the early 20th century, when Iceland was grappling with a tuberculosis epidemic.

Poorly ventilated homes were linked to the spread of the disease, prompting Icelandic Dr David Thorsteinsson to advocate for letting children nap outside in strollers. His theory was simple: cold, fresh air would help keep children healthy.

Today, this practice is so ingrained in Nordic culture that it’s common to see prams parked outside homes, cafes, and even businesses with sleeping babies bundled up against the chill.

A Finnish study in 2008 backed up this belief, finding that babies who napped outdoors slept longer than those who napped indoors. In a Daily Mail post, Pediatrician Dr Jennifer Shu, however, warns that babies’ temperatures can drop four times faster than adults, making hypothermia a real risk.

Nordic parents mitigate this by bundling their children in layers of wool and windproof clothing while keeping a close eye on baby monitors.

In many Nguni cultures, newborns and their mothers are kept indoors for extended periods to safeguard their health. Visitors are often discouraged for six months, ensuring the baby’s delicate immune system is not overwhelmed.

Historically, various cultures have prioritised nutrition, natural remedies, and practices aimed at ensuring both the physical and emotional wellbeing of mothers and babies.

The benefits of letting babies nap outside in the Scandinavian culture:

Better sleep quality

Parents in Scandinavia swear by this practice for one big reason: babies sleep longer and more deeply outside. Research from Finland shows that babies who nap outdoors sleep up to 1.5 hours longer than those indoors, thanks to the fresh air and consistent natural sounds.

Promotes healthy sleep patterns

Napping outside helps babies develop a healthy circadian rhythm. The natural light helps regulate melatonin, the hormone responsible for sleep meaning babies may fall asleep more easily at night, too.

Encourages a connection with nature

Scandinavian parenting places a strong emphasis on nature. Letting babies nap outdoors creates an early bond with the natural world, even if they’re not fully aware of it yet. This early exposure may support a calmer temperament and greater environmental awareness later on.

Reduces overheating risks

Indoor environments especially with heaters on can sometimes increase the risk of overheating or contribute to poor-quality air. Outdoor napping ensures cool, crisp air and naturally regulated temperatures (as long as the baby is properly dressed and monitored!).

Supports parental wellbeing

In Nordic countries, it’s common for parents to enjoy a coffee or chat with friends while their baby sleeps safely outside. This creates moments of mental rest and social connection for parents, which supports overall emotional wellbeing - something every sleep-deprived new parent needs!