Thermal Performance (tog Rating)
Manufacturers rate the performance of their duvets in togs, a measurement of thermal insulation. This enables the purchaser to select a duvet appropriate to the season: the higher the tog rating, the warmer the duvet.
A few manufacturers have marketed combined duvet sets, one of approximately 4.5 tog and one of approximately 9.5 tog. The light-weight one is for summer and the medium one for autumn; snapped together, 14 togs is designed for winter.
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Famous quotes containing the word performance:
“Still be kind,
And eke out our performance with your mind.”
—William Shakespeare (1564–1616)