Going to be taking sides of ds cot bed this w/e but need to get him a duvet. Has been in gro bags all his life. At mo in 2.5 tog and in summer the max i can put him in is a 0.5tog as he is a very hot child. I can not find a single 2.5 tog or less duvet anywhere at a decent price! There are all over £25!! I dont see why!! help!!