All Brooklyn Bedding mattresses (Plank is a sub-brand of Brooklyn Bedding) are backed by a standard 10-year warranty. This is the minimum duration of warranty you should expect for almost every ...

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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 ...

Kitchens also tested Plank Firm’s flippable mattress — which the brand says is the firmest on the market — and discovered that the “ultra firm” side was, in fact, the firmest memory-foam ...