The Slumberland Response Latex 3.0 Mattress puts a plushtop over the latex, and that soft quilted layer is why I'd send most people back down the range to the 2.0. Skip it if you sleep on your back or front, or if you hate a top that slowly settles and stays settled. The one buyer it makes sense for is a light side sleeper who wants the only Soft grade in the range and owns deep sheets.
A plushtop sits on the latex the 2.0 leaves bare
Work down from the top and you get a deep quilted plushtop filled with TrueComfort fibres, then a layer of latex infused with graphite, then comfort foam, then the springs. Slumberland calls the spring unit a triple layer: 1250 full-height nested pocket springs for support and 2500 mini pocket springs above them. It's 34cm deep and no-turn, with flag-stitched handles and a reinforced edge.
A plushtop is a pillow top by another name. I avoid them. The fibre top is the softest thing in the bed, so it compresses first and fastest, and on a one-sided mattress there's no fresh side to turn to when it does. On a latex bed it also gets in the way. You're paying for a bouncy, cool material and then putting a layer of fibre between you and it.
The extra mini springs go the same way. They swell the total on the label, while the support still comes from the same 1250 springs the 1.0 and 2.0 use, so read 3750 as a comfort-layer number.
Soft is the only reason to choose it
Of the numbered Response Latex models, 1.0 to 4.0, the 3.0 is the only one sold in Soft, alongside Medium and Firm. A light side sleeper, the sort of person a medium-firm feels like a plank to, gets a cushioned top over a properly supportive spring unit, and that's a fair thing to want. If that's you, buy the Soft and rotate it every few months from the first week, so the top wears evenly instead of under your hip.
Avoid it if you sleep on your back or front, because the plushtop lets your hips sink lower than your shoulders. Avoid it if you're heavier than about eighteen stone, since a deep soft top under a heavy body is where pillow tops dip first. Latex allergy exists, so leave it alone if that's you. The cover's Purotex+ treatment is approved by Allergy UK, a named scheme and worth having, though it does nothing about what sits under the cover.
Thirty-four centimetres needs new sheets
Standard fitted sheets stop reaching round the corners somewhere past 30cm, so budget for deep-pocket sheets with this one, and allow a little more if you use a protector. Check the height on your frame as well. On a tall base a shorter sleeper ends up perching on the edge rather than sitting on it.
What to buy instead
Most people should buy the Response Latex 2.0. It keeps the latex and the support springs, drops the plushtop and comes in Medium, which covers most side sleepers who think they need soft. Would I buy the 3.0? No. If even Medium won't give at your shoulder, look for a pocket-sprung mattress with a latex or wool comfort layer and a plain quilted surface, which gives you the softness without the part that wears first.
