Romantica Adagio Extra Firm Mattress
Mattress
Romantica Adagio Extra Firm Mattress
Size
Firmness
Extra Firm
Construction
Depth (cm)
25
Layers
3
Layer Details
- Comfort Layer. Soft white fibre fillings, which are soft synthetic fillings that create a cosy feel at the surface. They're durable and resilient, so this top layer shouldn't flatten quickly.
- Orthopaedic Layer. A layer of compressed polyester designed to provide enhanced spinal alignment and joint support. In practice, this is what gives the mattress its extra firm, posture-supporting character.
- Support System. Traditional open coil springs, interlaced and joined in a lattice design. This distributes your weight evenly across the bed, relieving built-up pressure and helping keep your spine aligned.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to stretch for one: The UK small double is 30cm wider than the UK single, which means a solo back or stomach sleeper can shift position on the firm surface without hitting an edge.
- Kinder to a tight floor plan: Being 15cm narrower than the UK double, it can leave you enough clearance for a door, a wardrobe or a desk in a smaller room.
- Our room guidance: We suggest allowing at least 2.4m x 2.8m for the UK small double, a little less than we recommend for the UK double.
- Same length as a double: At 190cm long, you lose width rather than legroom compared with the UK double, so taller sleepers aren't penalised for choosing the narrower size.
- Firm support that suits a guest room: The extra firm open coil build gives a predictable, supportive feel for occasional guests, although lightweight side sleepers may find it a little hard on the shoulders.
This size suits you if...
You sleep alone and want more width than a single without giving your whole room to the bed, or you're fitting out a box room, loft conversion or guest room where the odd couple stays but nobody shares nightly. It suits best if you prefer a very firm feel on your back or front.
Consider another size if...
You share the bed every night, or you'd happily trade floor space for more elbow room. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest at least 2.6m x 2.8m for it.
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Is the Romantica Adagio small double a good upgrade for a teenager?
Often, yes. The UK small double is 30cm wider than the UK single but the same 190cm length, so a teenager gains width rather than length. If your teen is growing very tall, bear in mind that length stays the same. The extra firm feel suits back and stomach sleepers, while lighter side sleepers may prefer something softer.
What size room do I need for a Romantica Adagio UK small double?
We suggest at least 2.4m x 2.8m for the UK small double. That gives you space to walk round the bed and open drawers. If your room is closer to 2.6m x 2.8m, the UK double becomes a realistic option, and it adds 15cm of width at the same length.
Romantica Adagio small double or double for one person?
For one person in a compact room, the UK small double usually makes more sense: it's 15cm narrower than the UK double at the same length, so you keep more floor. If you have the space and like to sprawl diagonally, the UK double gives you that extra margin on a surface this firm.
Can two people share a Romantica Adagio in a UK small double?
For the occasional night, such as guests staying over, it works. For nightly sharing we'd point you to the UK double, which gives 67.5cm each for two sharing. With an extra firm mattress you won't sink towards each other much, but the narrower UK small double still feels close for two adults every night.
Will a Romantica Adagio UK small double fit in a loft conversion?
It's one of the more practical choices for a loft bedroom, because at 120cm wide it leaves more standing space beside the bed than the UK double. Measure the full-height floor area rather than the whole room, and check it against our suggested minimum of 2.4m x 2.8m before ordering.