What is a Tog Rating?

Tog is the measure that indicates the warmth to weight ratio of a duvet - the insulation value. For example, a summer duvet would be a 3 or 4.5 tog, whereas in the winter 13.5 or even 15 tog would be used. 9 or 10.5 tog can usually be used all year round.

What is an All Seasons duvet?

If you sometimes feel too warm in summer and too cold in winter then one solution is to have two separate duvets, one for each period. But an All Seasons duvet has two duvets clipped together (usually 9 tog and 4.5 tog) which means you can use either as appropriate, or clip together for the equivalent of 13.5 tog.