Struggling to pick between a feather and hollowfibre filling? Not sure how to clean your duvet? Read our guide to buying and caring for your bedding We spend about one third of our lives asleep so it makes sense to invest in bedding that will keep you warm and comfy to ensure sleepless nights are kept to a minimum.  There are plenty of duvets to pick from, ranging from around £20 to over a hundred. But with tog ratings, fillings and size to think about, make sure you know what you want before you part with any money. To help, we’ve explained everything you need to know, including what type to get for the kids and how to keep your duvet clean. Don’t forget to invest in a good set of pillows and a quality mattress too, then you’ll be sleeping soundly every night.  When buying a duvet you’ll want to know how warm it will keep you, especially in winter, so it’s important to find out its tog rating. You’ve probably seen it splashed across duvet packaging already, as it refers to how well the duvet is able to trap warm air around you and therefore keep you insulated at night.  The scale ranges from 1 tog (the coolest) to 15 tog (the warmest). For summer, you need a 1-7 tog duvet, whe...