As with most things that make a mattress unique, the benefits of double-sided mattresses make them better for some people, but not others. Most double-sided mattresses have two levels of firmness. Having a softer side and a firmer side is excellent for guest rooms, growing kids, and anyone else whose mattress needs may change. It’s much easier—and cheaper— to flip a mattress than to buy a new one.
Another perk of dual-sided beds is durability. These mattresses have two sleeping surfaces, which means sagging and indentations will take longer to form—so long as you sleep on both sides.
But if you don’t see any benefit to having more than one firmness level, a one-sided mattress may be a better fit. Many one-sided beds are more affordable, and heavier folks may find greater durability in beds with a thick, supportive base layer.