Dormeo makes most sense to me in the middle of the market, where it can be inventive without asking luxury money for foam in a box. The Octasmart Premium Hybrid Plus felt true to that in the Bensons showroom. Slightly odd in places, quite clever in others, and better under body weight than the top layer spec first suggests.
The headline caution is the 20mm memory foam layer. That is not much. Plenty of shoppers will see “memory foam” and expect a deeper, slower sink, and this mattress does not give that classic enveloping feel. The Aerocell foam underneath does more of the softening work, helped by the Octasprings, so the comfort is broader than the 20mm figure implies. The layer is stingy on paper and less of a problem on the bed.
What the build tells you
This is a 22cm deep mattress with a medium comfort choice, supplied rolled in a box. It is no-turn, so regular rotation is the maintenance job. The free five-year guarantee is fine for this end of the market, although I would not call it generous. Several boxed-mattress rivals make louder promises there, even where the actual construction is no more convincing.
The shop cutaway was useful because Dormeo’s language can get heavy. Patented honeycomb Octasprings sit in 5 smart body zones and are designed to move in a 3-dimensional way around the body. Beneath them are individually wrapped pocket springs. They looked fairly compact in the display, closer to a supporting layer than a grand traditional spring core, so if you want the feel of a deep pocket-sprung mattress, this isn't it.
That said, the combination works. The Octasprings give a springy, resistive feel, while the pocket springs add steadiness. Ecocell and Fusion Foam layers are also used for balanced support. The result is more responsive than a plain memory-foam mattress, with less of the dead stop you get from cheaper foam designs. I could feel the mattress pushing back against small movements around the hips and shoulders. Nicely judged.
Cooling claims and cover details
Dormeo gives the Octavent Air System a big job, claiming it is 8 times more breathable than standard memory foam and can reduce bed temperature by up to 3°C. The surface did feel less dense and less heat-trapping than many memory-foam hybrids I have tried, and the open construction makes more sense than a token “cool touch” fabric label.
The smart performance hypoallergenic cover has comfort pockets for air circulation, plus anti-bacterial and antimicrobial treatment to help reduce common allergens. Those are decent additions, though I'd never buy a mattress for its fabric treatment. The cover texture was pleasant enough and the airflow pockets did not feel lumpy through the surface.
How it feels to lie on
Medium is the right label. There is light cushioning at first contact, then a quick move into firmer, elastic support from the layers below. The mattress does not swallow you. It lets the shoulder dip a little on side lying, then resists as weight builds, and that is where the joint support felt strongest during my in-store testing.
Back lying was comfortable, though less compelling. The lower back had some contouring, but people who prefer a braced, flatter posture should go firmer. If you want a plusher top, the eve Hybrid Duo Plus in the same shop is graded soft and stands 28cm deep against this one’s 22cm. The Dormeo’s character is airier and more mechanical under the body, for want of a better word.
Motion control is good: the layers absorbed movement as I shifted about. Edge support is adequate rather than mighty. Sitting near the side produced some compression, not collapse, but buyers who sleep right on the edge will notice the 22cm boxed construction more than they would on a deeper traditional hybrid.
Best match by sleeper type
Side sleepers are the safest audience. Average-weight side sleepers get enough shoulder give without losing hip support, and the medium tension keeps the bed approachable rather than firm for firmness’s sake. This is where the Aerocell foam and Octasprings earn their keep.
Average-weight back sleepers also find it comfortable, especially those who enjoy a bit of contouring. Heavier back sleepers should look firmer. Front sleepers should skip it: the medium feel and foam layers let the pelvis drop too far.
Hot sleepers have a reason to consider it, provided the 3°C cooling claim is treated as marketing rather than a guaranteed bedroom result. The breathable feel was real enough in store, and Dormeo has made the airflow part of the structure, not just the cover.
Verdict after trying it
The Octasmart Premium Hybrid Plus is a solid buy for the right sleeper. I would prefer more than 20mm of memory foam and a longer guarantee than five years, and the cooling numbers are marketing. Even so, the in-store feel was convincing: breathable, responsive and particularly good for average-weight side sleepers who want pressure relief without a heavy foam sink.
