Otty Extra Firm Hybrid Mattress
Mattress
Otty Extra Firm Hybrid Mattress
Size
Firmness
Construction
Depth (cm)
25
Layers
6
Layer Details
- Double Sided Cover. A washable, double-sided cover in a thick 400g knit, which means a soft, plush feel against your skin. Being removable makes it far easier to keep clean over the years.
- FlexFoam Layer. A high density, durable FlexFoam layer that delivers the firm support level. This is what gives the mattress its solid, planted feel rather than a soft initial sink.
- Firm Encapsulated Pocket Springs. Large encapsulated pocket springs provide the firm rating, and because each spring moves independently, motion transfer is kept to a minimum. That means less disturbance when a partner turns over.
- Side Supports. Thick foam borders around the perimeter give you an edge-to-edge sleep surface and help prevent rolling out of bed. Useful if you sit on the edge to get dressed.
- High Density Support Foam. A layer of specially designed Reflex Foam sits above the springs to add comfort and extra support when the mattress is flipped to the firm side. It keeps that side supportive rather than punishing.
- Bamboo & Charcoal Memory Foam. Bamboo and charcoal infused memory foam adds a touch of contouring comfort when the mattress is on the firm side. The infusion is there for its health benefits as well as feel.
Layer details from otty.com product page, September 2026.
- Sensible space for two: At 4ft 6in x 6ft 3in you each get 67.5cm of width, enough for most couples, and the encapsulated pocket springs keep a restless partner's movements to themselves.
- Edge support matters more at this width: Thick foam side supports give you a usable sleep surface right to the borders, which counts on a UK double where neither of you has much width to spare.
- Fits the rooms most of us actually have: We suggest a room of at least 2.6m x 2.8m, which most UK bedrooms manage while still leaving space for a wardrobe and bedside tables on both sides.
- Two firmness levels in one shared bed: Flipping between the 9/10 and 10/10 sides lets a couple try both and agree on one, without either partner buying blind.
- Easy to dress: Standard double sheets and duvets fit this size and are stocked everywhere, at every price point, so replacing bedding never becomes a hunt.
This size suits you if...
You share the bed every night and your room can't comfortably take a UK king, or you sleep alone, prefer a genuinely firm feel, and want space to stretch out, perhaps with a dog or cat claiming its usual corner. It also suits a guest room that hosts visiting couples, provided your guests won't mind a mattress this firm.
Consider another size if...
You both like space and regularly wake up shoulder to shoulder, or one of you is broad in build. We'd recommend the UK king instead: it's 15cm wider and 10cm longer than the UK double, a real difference every night.
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Is the Otty Extra Firm Hybrid in a UK double big enough for a couple?
For most couples, yes. Two people sharing get 67.5cm of width each, and the encapsulated pocket springs move independently, so you feel less of your partner turning over. The foam side supports mean you can sleep close to the edge without rolling off, which helps when neither of you has spare width.
What size room do I need for the Otty Extra Firm Hybrid in a UK double?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves room to walk around the bed and fit bedside tables on both sides. In a second bedroom or a first flat, a UK double usually still leaves space for a wardrobe and a chest of drawers.
Should I get the Otty Extra Firm Hybrid in a UK double or a UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king. If you share every night and the room allows it, the UK king gives each of you noticeably more space. If your bedroom is on the smaller side, or you'd rather the bed didn't dominate it, the UK double is the more practical fit.
Is the UK double Otty Extra Firm Hybrid a good upgrade from a single?
It's a big jump: the UK double is 45cm wider than the UK single, though the two are the same length at 190cm. Solo sleepers get real room to spread out, useful if a pet shares the bed. Do check the firmness suits you first, as 9/10 is a serious step up from most mattresses.
Does the UK double work in a guest room?
It's the natural guest room size, since it accommodates visiting couples as well as solo guests, and 135 x 190cm fits most spare rooms without swallowing them. One caveat: this mattress is firm on both sides, at 9/10 and 10/10, so guests who prefer a soft, cradling feel may find it harder than they're used to.