The Original stacks three foam layers to about 28 cm — a gel-infused memory foam layer and an Auralux layer that can swap places, sitting on a high-density base divided into five support zones. The cover is Tencel, made from wood pulp, and the whole thing carries both OEKO-TEX and CertiPUR-US certification. There are no springs anywhere in it.
Two things stand out. The firmness changes after delivery: unzip the cover, flip the top two layers, and the mattress moves between a medium and a medium-firm feel without moving the mattress itself. And the trial has no minimum stay — 125 nights, returnable from the first one, so a mattress that is wrong on night three can go back on night three. The warranty covers sagging from 20 mm, a shallow threshold and one Onebed actually publishes, and that figure is what decides whether a claim succeeds.
The costs are structural and administrative. All-foam means excellent motion isolation and a softer perimeter — if you sit on the edge of the bed to get up, this is the wrong build. There are only two settings, medium and medium-firm, with nothing firmer available. And two things are left vague: free delivery carries an asterisk saying it may not reach some rural and remote postcodes without saying what those cost instead, and the instalment amounts are printed without ever naming the provider.