I went to John Lewis to buy a Grobag today for imminent DC1, and was taken aback to find the whole display filled with 1 tog bags. According to the temp/tog chart, they're for temperatures above 20 degrees, which it certainly isn't right now in my house and rarely ever is at night, even in 'high summer'. The JL advisor said they hadn't got any 2.5. Tog ones out because of the 'change of season'. This seems a bit mad. I know I can just buy them online, but am I missing some important logic? Is there a reason why 1 tog is a better buy right now?