
Small sleeping bag, the sleep sack is designed to be a top choice accessory for baby. It hugs your little one’s shape and provides the necessary comfort during cold nights. There will be no need to cover baby anymore. Using a sleep sack reduces the risk of suffocation. However, buying a sleep sack can be a challenging task. To find the right accessory for your child’s age and body shape, you will need to consider a few selection criteria.

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The size and material of the sleep sack
Choosing your child’s sleep sack should start with an assessment of its size. This generally depends on your baby‘s age. At the right size, your baby should not float or be too cramped in their sleep sack. They should be able to enjoy their movements and feel completely comfortable. On the market, manufacturers of sleep sacks offer accessories in different sizes based on the age of baby. There are thus sleep sacks for children:
- Premature;
- 0-12 months;
- 12-24 months;
- 18-24 months;
- 24-36 months.
Some manufacturers may even offer sleep sacks for 10-year-olds. You must ensure to adapt the size of the sleep sack to your child’s age. Therefore, you will need to buy a new one as baby grows.
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In terms of material, you can prioritize a sleep sack made from a lightweight and breathable fabric. Your child will thus enjoy better comfort when settled in their sleep sack. In this case, you should opt for a sleep sack made of 100% organic cotton. It will be soft and unlikely to irritate baby‘s skin. These are quality models that the online store Un Brin de Fil offers for you to discover.
The closing system
The sleep sack comes with different closing systems. The most important thing is that it is secure for baby‘s comfort. For a child who goes to daycare, you will need a sleep sack with a closing system in the middle. Prefer a model with a shoulder opening system when your child is old enough to do it themselves.
If you go out a lot with your child, you will need to opt for a travel sleep sack. It is equipped with a simpler closing system that makes it practical and very convenient. To close or open your sleep sack, you just need to use the zipper and you’re done.
The temperature of the sleep sack

For your child’s comfort, it will be necessary to choose a sleep sack suitable for each season or the temperature of baby‘s room. Indeed, manufacturers of sleep sacks offer various models with a TOG rating suitable for each temperature. For a room with a temperature above 22°, you will need a sleep sack with a TOG of 0.5. The TOG of 1 is ideal for rooms with a temperature above 21°. For a baby’s room with a temperature between 18 and 21°, you need a TOG of 2. The TOG of 3 is perfect for rooms with a temperature between 15 and 18°.