What tog should you get if you share a bed?

Think about how comfortable you are with your current duvet. An extra person adds extra heat to your bed, so you may find a lower tog duvet more comfortable. Alternatively, think about choosing a different fill duvet. Wool fill duvets are especially good for partners who can't agree on the perfect temperature as it adapts to different temperatures in the same bed. If you're both hot sleepers, then a silk fill duvet may be a good choice as it's very cooling and breathable. Remember to think about duvet size as well as tog, especially if one of you hogs the duvet. Buying a duvet one size larger than your bed means there's plenty of duvet to go round.