Quick answer
A winter sleeping bag bundle should include both a 2.5 TOG and a 3.5 TOG sleeved sleeping bag to cover the full range of cold weather, plus a long-sleeved bodysuit and footed pajamas for safe layering.
Why two TOG ratings matter for winter
A single sleeping bag can't handle the temperature swings between early winter nights and the coldest midwinter months. The ergoPouch Winter Sleeping Bag Bundle gives you a 2.5 TOG bag for milder winter evenings (around 16-20°C / 61-68°F) and a 3.5 TOG bag for deep winter conditions (below 16°C / 61°F). Having both means you don't need to guess or buy a second bag later.
Layering under the sleeping bag
A sleeping bag replaces loose blankets, but your baby still needs appropriate clothing underneath. For a 2.5 TOG bag, a long-sleeved bodysuit and a pair of footed pajamas usually suffice. For a 3.5 TOG bag, add a thin cotton or wool layer between the bodysuit and pajamas. Avoid overdressing: if your baby's neck feels warm or sweaty, remove a layer. The sleeved design of the ergoPouch bags makes layering easier because the arms stay covered without bunching.
What else belongs in a winter sleep bundle
Beyond the sleeping bags themselves, a complete winter sleep bundle should include a room thermometer (to check the nursery temperature), a few long-sleeved bodysuits, and footed pajamas in the correct size. If your baby is still swaddling, you may need a transition sleep sack first. The ergoPouch bundle focuses on the two core sleeping bags, so you only need to add the base layers you already own.
Frequently asked questions
How do I know which TOG to use tonight?
Check the nursery temperature with a reliable room thermometer. For 20-24°C (68-75°F) use a 1.0 TOG bag; for 16-20°C (61-68°F) use the 2.5 TOG bag; for 12-16°C (54-61°F) use the 3.5 TOG bag. The ergoPouch bundle covers the two coldest ranges. Always check the room temperature before choosing a bag—don't rely on guesswork.
Can I use the 3.5 TOG bag in warmer months?
No. A 3.5 TOG bag is designed for cold conditions and will cause overheating above 20°C (68°F). Stick to the 2.5 TOG bag for mild winter nights and switch to a lower TOG in spring. Store the 3.5 TOG bag away during warmer weather to avoid accidental use.
Do I need extra blankets with a sleeping bag?
No. A correctly fitted sleeping bag with the right TOG rating replaces loose blankets entirely. Adding extra blankets increases the risk of overheating or suffocation. If your baby feels cold, add a layer of clothing underneath, not a blanket on top. The sleeping bag is the only covering needed—no loose bedding in the crib.
Product facts
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Winter Sleeping Bag Bundle: Save 20% off RRP with the Winter Sleeping Bag Pack, which includes 1 x 2.5 TOG Sleeping Bag Sleeved (RRP $74.95) and 1 x 3.5 TOG Sleeping Bag Sleeved (RRP $79.95). Buying the bundle costs less than purchasing the two bags separately, giving you a complete cold-weather sleep solution at a lower price.
Winter Sleeping Bag Bundle
