How does the 365-night sleep trial work?

Serta gives you a full 365 nights to decide, one of the longest windows in the industry. That year matters here because a medium-firm latex bed feels different once your body adjusts over a few weeks, and different again across changing Canadian seasons. If it ultimately is not right, you return it for a refund or exchange. Allow at least the first few weeks of break-in before judging the feel.