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 ...

The Koala mattress lineup has four models — all them foam based, but otherwise constructed from a variety of materials, each ...

Luckily, Nolah as a brand is quite good at offering ... Back in the day, the Nolah Signature was flippable, but the newest iteration is a one-sided mattress. There are many beds within the online ...

As a brand, Lull backs the Luxe Hybrid mattress with some of the best policies ... Sadly, you cannot flip any of the Lull beds. All of the beds in Lull's lineup are currently one-sided beds.