Finding the perfect mattress, duvet, and pillows, is easier said than done, which is why a salesman has issued a step-by-step guide including his handy 10-minute rule. With over 20 years of experience under his belt, Strictly Beds & Bunks’ Andrew Buchan knows that the first step is understanding what kind of sleeper you are. While most people understand the difference between back, front, and side sleepers, other factors worth noting include weight, sleep temperature, and bodily pains. Step one: Choosing a mattressChoosing the right mattress can be a daunting task, largely because of the heavy…