Sleep is one of the most important natural processes in the world. In fact, some would argue that it is the most important process in existence. We need sleep to survive and function, and when we aren’t sleeping well, boy, do we know about it. A lack of sleep can leave us tired, it weakens our immune system, it makes us feel irritable, it damages our mental health, it reduces our levels of focus and concentration and it can even put our health at risk. When driving on the road for example, tiredness kills. There are many different things that can influence the amount of sleep that we get each night, but if you’re consistently not sleeping, your mattress could be the culprit. A poor-quality mattress is one of the leading causes of disrupted sleep, which is why a full-size mattress could be the solution to all of your sleeping concerns. Here’s a detailed look at full-size mattresses.