(Image credit: Future) The mattress market has changed drastically over the past decade, with innovations specifically within the mattress-in-a-box and smart bed sector challenging what we thought we could ever expect from our beds. A mattress that can stop your snoring, anyone? That means that if you haven’t bought a mattress within the past eight or so years, the landscape could seem a little confusing. But we — a team of mattress reviewers who have tested 120+ mattresses across every category to bring you our guide to the best mattress you can buy online — are on hand to help cut through the noise and the marketing jargon. If you’re mattress shopping for the first time in a while, especially with the Memorial Day mattress sales coming up, these are the four main types of beds you can buy and who they might be best for. Memory foam: The ‘body-hugging’ mattress A memory foam mattress is a mattress made entirely of viscoelastic polyurethane, more commonly known as memory foam.…