I know this probably sounds ridiculous but can anybody help at all. Just bought a bed for my 2 yr dd and am about to buy a duvet set. The one she has now is a 2.5tog which fits the cot she has now. Looking in the mothercare book for single duvets and they are a 10.5 tog. Do you think this is right? Just worrying I suppose as ours is a 10.5. Thanks.