TOG stands for “Thermal Overall Grade,” and it’s a measure used primarily to determine the insulating properties of fabrics, especially in products like duvets, sleeping bags, and baby sleepwear.

TOG is a measure of thermal resistance, which indicates the insulating capabilities of a fabric or product. The higher the TOG rating, the warmer the product is. This is because a higher TOG rating means that the product has greater resistance to letting heat pass through it.

When selecting sleeping bags or sleepwear for babies, a higher TOG would be appropriate for colder conditions. Conversely, a lower TOG would be suitable for warmer conditions. This helps parents choose appropriate sleepwear for their children based on the season and ambient room temperature to ensure the child doesn’t get too cold or overheat.

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