The Emma Original Mattress and the Otty Hybrid Mattress are both 25cm hybrids, but they suit different sleepers, and one comes out ahead.
You've narrowed it down to two hybrids of the same depth, both 25cm, both backed by a 10-year guarantee. On paper they look similar. In practice they pull in different directions: the Emma Original leans on foam comfort with a 5-zone pocket spring core underneath, while the Otty Hybrid is built around an unusually tall 16cm encapsulated spring layer, which means more push-back and a firmer, more responsive feel.
Our verdict is the Otty Hybrid. It wins on cooling, with heat regulating memory foam and airflow side supports that the Emma can't match, and on choice, with nine sizes against Emma's seven, running from UK Single up to Emperor plus three EU sizes.
That said, the Emma takes the value dimension convincingly. It sits well below the typical hybrid price, so if budget is your first filter, keep reading before you commit.
Our verdict at a glance: which mattress wins?
The Otty Hybrid wins on cooling, with heat regulating foam and airflow side supports that the Emma Original simply doesn't offer.
RUNNER UP
It costs noticeably less
The Emma Original sits far below the median price for a hybrid, roughly half of what its construction type usually costs, which makes it the clear pick if you want springs and foam without a mid-market outlay.
You get double the trial period
Emma gives you a 200-night trial against Otty's 100, which means a full change of seasons at home before you're committed.
The cover is removable and washable
A small thing, admittedly, but being able to wash the cover is genuinely useful over ten years of ownership. Otty's cover is removable too, but for dry cleaning only.
WINNER
It runs cooler
Heat regulating memory foam up top and airflow side supports around the perimeter give the Otty a clear edge for warm sleepers, and it won the cooling comparison outright.
Taller springs, up to 2,000 of them
The 16cm encapsulated pocket springs are unusually tall for a hybrid, which means more genuine bounce and support, with encapsulation firming up the edges so you can use the full width of the bed.
More sizes to choose from
Nine sizes against Emma's seven, stretching from UK Single up to Emperor with three EU options, so unusual bed frames are better catered for.
Emma Original
Otty Hybrid
Firmness
Medium
Medium Firm
Layers
6
6
Price Range
£252 to £679
£499 to £850
On construction alone these two are too close to call, and honestly that's the right reading. Both are 25cm deep, six-layer hybrids pairing memory foam with pocket springs and a supportive foam base. The Emma zones its spring core into five areas, while the Otty goes taller with 16cm encapsulated springs. Different approaches, similar overall build quality.
Construction verdict: which wins on build?
On construction alone these two are too close to call, and honestly that's the right reading. Both are 25cm deep, six-layer hybrids pairing memory foam with pocket springs and a supportive foam base. The Emma zones its spring core into five areas, while the Otty goes taller with 16cm encapsulated springs. Different approaches, similar overall build quality.
How firm are both mattresses?
Which mattress feels better?
Emma describes the Original as medium firm, a balance of cushioning and support that suits most sleeping positions. The foam layers above the 5-zone spring core let your hips sink slightly while your shoulders stay cushioned, which is what side and combination sleepers tend to want. Otty is more precise: Medium-Firm, rated 7/10, which means noticeable support with a soft knitted surface rather than a sink-in feel. That firmer, springier character suits back and front sleepers who need spinal support, but lightweight side sleepers may find it a little too firm on the shoulders and hips. If you sleep mostly on your side, the Emma is the safer bet of the two.
Other important factors to consider before buying.
Both mattresses come with a 10-year guarantee direct from the maker, so long-term cover is a dead heat. The trials differ, though: Emma gives you 200 nights at home, while Otty offers 100. The table below sets out the terms side by side.
Emma Original
Otty Hybrid
Trial (nights)
200
100
Guarantee (years)
10
10
Environmental impact and sustainability
Emma Original
Otty Hybrid
Sustainability
Undefined
Undefined
Certifications
Prices and sizes for both mattresses
The Emma Original is the cheaper of the two by a comfortable margin, sitting well below the typical hybrid price, while the Otty occupies sensible mid-market territory. Current prices for both are in the tables below.
Emma Original Mattress
Otty Hybrid Mattress
The Otty Hybrid is our winner here. It took two of the three dimensions that separated these mattresses: cooling, thanks to its heat regulating memory foam and airflow side supports, and choice, with nine sizes from UK Single to Emperor against Emma's seven. Its 16cm encapsulated pocket springs also deliver a firmer, more responsive feel with solid edge-to-edge support, which back and front sleepers in particular will appreciate. The Emma Original wins on value, and it wins clearly: it costs considerably less for a similar 25cm six-layer hybrid build, and its 200-night trial doubles Otty's 100. So if budget leads your decision, the Emma is a perfectly sound buy. For everyone else, especially warm sleepers and those who want firmer support, the Otty is the better mattress.
Decision helper
Consider your primary need: a cooler, firmer, more supportive hybrid in more sizes, or a similar construction at a much lower price with a longer trial.
RUNNER UP
It costs noticeably less
The Emma Original sits far below the median price for a hybrid, roughly half of what its construction type usually costs, which makes it the clear pick if you want springs and foam without a mid-market outlay.
You get double the trial period
Emma gives you a 200-night trial against Otty's 100, which means a full change of seasons at home before you're committed.
The cover is removable and washable
A small thing, admittedly, but being able to wash the cover is genuinely useful over ten years of ownership. Otty's cover is removable too, but for dry cleaning only.
WINNER
It runs cooler
Heat regulating memory foam up top and airflow side supports around the perimeter give the Otty a clear edge for warm sleepers, and it won the cooling comparison outright.
Taller springs, up to 2,000 of them
The 16cm encapsulated pocket springs are unusually tall for a hybrid, which means more genuine bounce and support, with encapsulation firming up the edges so you can use the full width of the bed.
More sizes to choose from
Nine sizes against Emma's seven, stretching from UK Single up to Emperor with three EU options, so unusual bed frames are better catered for.
Is the Otty Hybrid firmer than the Emma Original?
Yes, slightly. Otty rates its Hybrid as Medium-Firm at 7/10, a noticeably supportive feel with a soft knitted surface, while Emma describes the Original as medium firm with more cushioning from its foam layers. Back and front sleepers will likely prefer the Otty, while side sleepers may get on better with the Emma's softer top.
Which is better for hot sleepers, Emma Original or Otty Hybrid?
The Otty Hybrid is the better pick for hot sleepers, and it won our cooling comparison. It uses heat regulating memory foam and airflow side supports designed to aid temperature regulation. The Emma Original has no stated cooling materials, so warm sleepers should lean towards the Otty.
Do the Emma Original and Otty Hybrid have the same trial and guarantee?
The guarantees match at 10 years each, direct from the maker. The trials don't: Emma offers 200 nights at home, double Otty's 100. Both are long enough to make a proper decision, but if you're a cautious buyer the Emma gives you more breathing room.
Is the Emma Original cheaper than the Otty Hybrid?
Yes, by a comfortable margin. The Emma Original sits well below the typical price for a hybrid mattress, while the Otty Hybrid is priced closer to the mid-market norm. Given both are 25cm six-layer hybrids, the Emma is the stronger value pick, though the Otty gives you taller springs and cooling materials for the extra spend.
Which mattress is better for couples, Emma or Otty?
Both handle partner disturbance well, but in different ways. The Otty's 16cm encapsulated pocket springs are designed to minimise motion transfer, and encapsulation firms the edges so you can use the full width. Across owner reviews on Emma's product page, most couples report minimal partner disturbance from the Original too, so neither is a bad choice here.
Editor
Jo Plumridge
Consumer journalist, 20 years. Writes on sleep and home for The Telegraph, TechRadar and Expert Reviews.