Now that the sun is turning to rain and the days are getting shorter, it’s about time to switch up your summer bedding for a duvet with a lower tog – here’s how. It’s nearly time to dig up that winter bedding you correctly stored last year and give your mattress a good scrubbing. But no one teaches you the correct way to sort your bedding, with most people completely unaware of what a tog rating even is. That’s where we come in. What is a tog rating?While most people understand how often you should wash your sheets, there was no lesson in school for selecting those sheets in the first place. W…