The collectionViscoelastic
All-foam. Viscoelastic on a high-resilience base
No steel anywhere in it. Fifty millimetres of viscoelastic at 55 kg/m³, on a hundred and ten of high-resilience base. Nothing in this bed answers quickly, and nothing in it was meant to.
I
It takes the shape. Then it lets it go.
Press and hold
Fifty-five kilograms per cubic metre. Modulus follows the square of density — Gibson and Ashby, 1982 — so five kilograms more than the grade in TITAN is not ten per cent more resistance, it is twenty-one. And it is still exactly as late. Stiffness and lateness are not the same property, and almost everyone who sells this confuses them.
Recovery
II
| Stratum | Material | mm | kg/m³ |
|---|---|---|---|
| Ticking | Knitted polyester jacquard, quilted | 10 | — |
| Bond line | Hot-melt adhesive | 1 | — |
| Viscoelastic | Memory foam, open-cell | 50 | 55 |
| Bond line | Hot-melt adhesive | 1 | — |
| Support foam | High-resilience polyurethane | 110 | 38 |
| Base felt | Needle-punched non-woven | 10 | — |
| Overall | 182 | — | |
III
Two layers, and the argument between them.
55 kg/m³ · 50 mm
Fifty millimetres at 55 kg/m³. Raise the density and the cell struts thicken and the foam gets firmer — but the delay does not come from the density. It comes from the polymer. Change the grade and the firmness moves; the six seconds stay exactly where they are.
38 kg/m³ · 110 mm
A hundred and ten millimetres of high-resilience polyurethane at 38 kg/m³. It is not there to be felt. It is there so that the fifty millimetres above it are pressing on something that does not give — an elastic foundation under a viscoelastic surface, which is the same argument the pocket beds make, made in foam.
2 × 1 mm
Two of them, one millimetre each: one under the ticking, one between the two foams. That second line is the rare one — open cells on both faces, so the hot melt does not merely stick, it interlocks into each of them. In a bed with no steel anywhere in it, the adhesive is the only thing that is not foam.
Nothing in it is steel. Nothing in it is in a hurry.