A tog value is a peculiarly British measure of thermal insulation "equal to ten times the temperature difference (in °C) between its two surfaces when the flow of heat is equal to one watt per square metre.".
These duvets are available in 2 Tog values - 4 Tog and 9 Tog.
The tog value which will best suit you depends on several factors including the ambient room temperature through the night, and your personal preference for a warmer/cooler cover.
Suitable throughout the year for most, where the room temperature remains above approx 13°C (55°F).
Generally for Summer use.
For extra warmth and for those who particularly feel the cold at night or where the temperature is likely to fall significantly below 12°C, a 13.5 Tog duvet provides the snuggest winter warmth. The duvets have silk tiestrings, which enables a 4 Tog to be paired with a 9 Tog to form a 13 Tog duvet.
A duvet of each Tog value gives you full flexibility through the year to use one, or the other ... or both.
SAVE 10% when you order a 4 Tog and 9 Tog combination
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