TOG

保温・断熱性能

一般的にも寝具の保温・断熱性能を表す指標に使われている「tog値」は、ふとんが熱を逃がさない度合いを数値化したものです。

数値が大きいほど熱を逃さず（＝保温・断熱性が高い）、部屋の温度が低い環境で快適な睡眠を得ようとした場合は、それに応じてTOG値も大きくなります。

The tog is a measure of thermal insulance of a unit area, also known as thermal resistance. It is commonly used in the textile industry and often seen quoted for duvets and carpet underlay.

Developed at The Shirley Institute in Manchester, as an alternative to the SI unit of m2K/W.

Basic unit of Tog (insulation coefficient) is the RSI, (1m2⋅K/W). 1 tog = 0.1 RSI: Thermal resistance in togs is equal to 10x the temperature difference (in °C) between 2 surfaces of a material when the flow of heat is equal to one watt per m2. Tog is measured from the difference in temperature between a heated metal plate beneath a fabric and the air temperature above the fabric. This is a much more objective measure than Comfort Ratings, as commonly used for sleeping bags and can be applied to a wider variety of sleep systems. It is also possible to provide a Wet & Dry Tog value, useful when describing use in typical UK conditions.