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How to Layer Your Baby for a Cold Australian Winter Night
Mousumi Mem·November 27, 2025
As the winter chill sets in across Australia, from the frosty mornings in the Blue Mountains to the crisp nights in Melbourne, a common question pops into every parent's mind: "Is my baby warm enough at night?"
Getting the layers right is crucial for a safe and sound sleep. Overheating is a risk, but so is being too cold. The key is smart, adjustable layering. This step-by-step guide will help you master the art of layering your baby for a cold Australian winter night, using trusted products like Bonds Wondersuits, merino wool, and safe sleeping bags.
The Golden Rule: The TOG System Made Simple
First, let's talk about TOG (Thermal Overall Grade). It's a measure of thermal warmth. The higher the TOG, the warmer the item. In winter, you'll typically use a 2.5 TOG or 3.5 TOG sleeping bag as the top layer. We'll use this as the foundation for our layering guide.
Always remember: A baby’s core is the best indicator of temperature. Feel their chest or back of their neck—their hands and feet are often cooler, which is normal.
The Step-by-Step Layering Guide for a Cold Night (0-10°C)
Follow these steps to create a safe and cosy sleep system for your little one.
Step 1: The Base Layer – Moisture-Wicking Comfort
This layer sits directly against your baby's skin. Its job is to draw moisture away to keep their skin dry and comfortable.
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What to use: A long-sleeved organic cotton bodysuit or a lightweight merino wool singlet. Merino is a superstar here as it's naturally temperature-regulating and breathable.
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Little Eedie Pick: Our Organic Cotton Long-Sleeved Bodysuits are perfect for this first layer of softness.
Step 2: The Mid Layer – Snug & Secure Warmth
This is your primary insulating layer. The classic Australian favourite is a full-length, footed sleepsuit.
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What to use: A Bonds Wondersuit or similar style suit. These are ideal because they have built-in feet and fold-over mittens, eliminating the need for loose socks or scratchy mittens that can come off. Their 100% cotton fabric is a warm and breathable mid-layer.
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Why it works: It traps warmth close to the body while allowing the breathable base layer to manage moisture.
Step 3: The Sleep Bag – The Safe & Toasty Top Layer
This is your most important layer for regulating temperature. A baby sleeping bag is safer than loose blankets as it can’t cover your baby’s face and reduces the risk of SUDI.
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What to use: A 2.5 TOG sleeping bag is perfect for most Australian winter nights. For particularly cold nights (below 5°C), you might opt for a 3.5 TOG bag.
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How to choose: Ensure it is the correct size for your baby—snug around the neck and armholes to prevent slipping down, but with plenty of room in the body for them to move their legs freely.
What About Extremely Cold Nights?
For those icy nights, or if your home is particularly draughty, you can add an extra mid-layer.
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The Solution: After the bodysuit, add a merino wool sleepsuit or a pair of merino wool leggings and a long-sleeved top. Then, put the Bonds Wondersuit on top.
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Why Merino Wool? Merino is a miracle fabric for baby layering. It provides excellent warmth without bulk and is highly breathable, making the risk of overheating much lower than with synthetic fleece.
A Quick Layering Cheat Sheet
| Room Temperature | Base Layer | Mid Layer | Sleep Bag (TOG) |
|---|---|---|---|
| 16-20°C (Mild) | Cotton Bodysuit | --- | 1.0 TOG |
| 12-16°C (Cool) | Cotton Bodysuit | Bonds Wondersuit | 2.5 TOG |
| < 12°C (Cold) | Merino Wool Singlet | Bonds Wondersuit | 2.5 TOG |
| < 5°C (Very Cold) | Merino Wool Singlet | Merino Top & Pants then Wondersuit | 3.5 TOG |
What to Avoid for Safe Winter Sleep
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NO Loose Blankets or Duvets: These are a suffocation hazard for babies.
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NO Hoods: Remove any hooded clothing for sleep.
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NO Thick Jackets or Snowsuits under a sleeping bag: This creates too much bulk and can lead to overheating.
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NO Hot Water Bottles or Electric Blankets: These are extremely dangerous in a cot.
Your Winter Sleep Essentials at Little Eedie
We've made it easy to get your baby's winter wardrobe right. At Little Eedie, you can find everything you need for a safe and comfortable winter:
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Organic Cotton Bodysuits for the perfect base layer.
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A curated selection of Baby Sleeping Bags in various TOG ratings.
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Cosy Bonds Wondersuits and other warm sleepsuits.
With this simple layering system, you can face the Australian winter with confidence, knowing your little one is sleeping safely and soundly.
Stay warm and snug! Explore our full range of Winter Baby Essentials to prepare for the season ahead.

