Unlike most mattress review sites, we physically try every single bed that we review. We gather information from official sources and evaluate the construction, firmness ratings, cooling factors, and more... all in all, over 2 dozen data points for comparison.
Our most popular list is driven by an algorithm that takes into consideration both pageviews and clicks, meaning, which mattresses are people looking at, and clicking on for more details. We've found that this provides a pretty accurate proxy for popularity. This list is NOT ranked by quality or editorially driven based on sleep position, or other factors.