The Slumberland Response Latex Ultimate Mattress is a decent latex-and-springs mattress from a maker I rate, and most owners are happy with it. Rebecca Brown tried it in a Bensons store for us and found the Medium firmer than she'd like on her side. I'd still pay the extra for its sibling, the Response Latex 2.0: the Ultimate is 34.5cm tall and no-turn, and the 2.0 gives you more full-height springs and a firmer grade.
What Rebecca found in a Bensons store
Rebecca Brown tried the Medium on the shop floor at Bensons in January 2025. She weighs about 66kg and changes position through the night, so she tried it on her side and on her back.
On her side it was firmer than she'd choose, with her shoulder asking for more give than the Medium had. On her back it was comfortable, and the latex moulded well to her shape. Her take was that it suits back sleepers better than people who roll about. If you're a lighter side sleeper, I'd try the Soft.
Latex is the good bit
Latex is springy, it doesn't trap you, and it sleeps cooler than memory foam. Here it sits on top of two layers of springs: 1,050 full-height pocket springs with 2,000 mini pocket springs above them, which Slumberland adds together to make 3,050. Over the latex is what Slumberland calls an ultra-deep comfort layer, then a deep quilted, stretch-knit cover with its Truecomfort fillings. The edges are reinforced to reduce roll-off, and it comes in Soft or Medium.
The number I'd look at is the 1,050. Those are the springs holding you up, and for a mattress this tall it's a modest count. Most of the height is comfort layers.
A tall bed, in every sense
At 34.5cm it needs extra-deep fitted sheets, and on a standard divan the top of the bed ends up high. One owner who is five feet tall finds it a struggle to get in and out, which is the sort of detail no spec sheet will warn you about. You rotate it but never flip it, so the top layers carry all the wear.
The owners who weren't happy
They're few, but their stories are the ones I'd listen to. One owner noticed it dipping in the middle after two years, not supporting their hips, despite rotating it as told; another simply says it "was great for a while" and has now sunk. One found "it seems to make us overheat", and a different owner kept waking up hot, ended up on the sofa and went back to their old mattress within a week. Dips in deep comfort layers on a no-turn mattress are exactly what I'd expect, which is why I keep banging on about turnable beds.
Avoid it if you're short, if you sleep hot, or if you want a mattress you can flip. If you're still tempted, measure the height of your base before you order and add 34.5cm to it.
What to buy instead
Buy the Slumberland Response Latex 2.0. It's listed at a higher price, but it has 1,250 full-height springs instead of 1,050, handles for rotating, and Medium, Firm and Extra Firm grades. It's also slightly lower at 33cm, though you'll still want deep sheets.
