What should babies wear under sleep sack?

By biloban at 2020-07-20 • 0 collector • 242 pageviews


1. Nursery temperature

For instance, if the temperature is about 75 degrees Fahrenheit, a short-sleeved onesie under the sleep sack would be enough.

However, if the temperature is a bit lower like 64 degrees Fahrenheit, then a long-sleeved onesie such as Carter Baby Boy’s or Hudson Baby Girls onesies coupled with a footless romper, can be worn under the sleep sack to keep the baby warm.

Most parents choose to have the thermostat at home or in the nursery set between 69 to 72 degrees Fahrenheit. Although this is considered the perfect temperature for sleep, it might still be a little bit cold for your baby and he may need extra layering. Therefore, according to the table below, you should add a short-sleeved onesie and a footless romper under the sleep sack.


Here is a table to help you choose the most suitable clothing for your baby to sleep in at different temperatures.

2. TOG value of the sleeping bag

Another important factor to consider is the TOG value of your baby’s sleep sack.


TOG simply refers to a measure of thermal insulation or thermal effectiveness of a blanket or sleep sack. In short, TOG indicates how well a blanket or sleep sack can keep a baby warm.


You determine the most suitable TOG of your baby’s sleep sack based on the temperature in the nursery.


From the image we have provided above, you can see that different temperatures require different TOG sleeping bags and layering.

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