The Plank Firm is a double-sided foam mattress that offers you a choice of two sleep surfaces: Firm or Extra Firm. We spent more than a month sleeping on and testing the Plank Firm and while it is ...

It's an enticing increase from the usual 25% off sale, and don't forget, it's a dual-sided mattress — so that's basically two beds in one. The Plank Firm is a double-sided mattress: firm on one ...

While most mattresses made today are not designed to be flipped, an increasing number of top-rated sleep brands are ...

In our experience, most mattresses we test fall within a firmness range of medium to medium-firm. Beds firmer than medium and beds softer than medium are far less common. That's where the Plank ...