The days are getting shorter and the nights a little cooler. It’s time to swap your lightweight summer sleeping bag for a warmer one. But how do you know when it’s the right moment to switch? And which TOG value or size suits your baby best?
In this article, we’ll guide you step by step through the sleeping bag transition — so your baby stays safe, snug and comfortable all night long.
Why choosing the right sleeping bag matters
A well-chosen sleeping bag helps your baby sleep safely and comfortably. In summer, a lighter sleeping bag allows the air to circulate. In winter, a thicker sleeping bag keeps your baby warm. The right TOG value keeps your baby’s body temperature in balance, not too warm and not too cold.
Trust your instincts, because you know your baby best. There is also a helpful guide that can support you: the TOG value.
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TOG stands for Thermal Overall Grade and shows how well a sleeping bag retains warmth. The higher the TOG value, the warmer the sleeping bag.
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The TOG value applies only indoors with a stable room temperature. It is a guideline, not an exact science. It helps you dress your baby appropriately. You know your baby best, so always trust your feeling.
A simple way to check is to feel the back of your baby’s neck. If it feels clammy or sweaty, your baby is too warm. If it feels cool, add an extra layer.
Our TOG chart
To make choosing easier, we have added our TOG charts below. They show which sleeping bag is suitable for different room temperatures and what your baby can wear underneath. The illustrations help you find the perfect combination for a comfortable night’s sleep.
Please note that the chart gives general guidance. Always check that your baby feels comfortable and is not too warm or too cold.
When do you switch from summer to winter?
You know your baby best. Trust your intuition and pay attention to small signals like cool hands, a clammy neck or restlessness at night.
Choosing the right size sleeping bag
In addition to the TOG value, the size of the sleeping bag is also important.
The fit of a sleeping bag is just as important as the TOG value. A good fit keeps your baby safe and comfortable. The sleeping bag should not be too loose around the neck or arms but must allow enough room to move the legs freely.
Size advice by height and age:
Practical tip:
If your baby is between two sizes, it is better to choose the smaller one, especially for younger babies.
Always make sure the shoulders fit well in the armholes and that the zip closes properly.
warm, safe and familiar
Choose natural materials such as cotton or muslin. They are breathable and soft on your baby’s skin. A calm environment, a familiar bedtime routine and the right sleeping bag help your baby feel secure. The transition from summer to winter then becomes not only comfortable but also warm and reassuring for both of you.
