Romantica Adagio Extra Firm Double Mattress
The Romantica Adagio is an extra firm orthopaedic mattress, which means very little sink and a solid, supportive feel from the moment you lie down.
- Extra-firm feel that isn't board-like
- Helps keep your spine aligned
- Spreads weight to ease pressure
£224
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Romantica Adagio Extra Firm Mattress
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Mattress details
Mattress
Romantica Adagio Extra Firm Mattress
Size
Firmness
Extra Firm
Construction
Orthopaedic
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.
Key benefits
- Shared space that suits the room: The 135cm width gives each of you 67.5cm, enough for most couples who sleep fairly still, while leaving floor space for a wardrobe and a chest of drawers.
- Space for bedside tables: Allow at least 2.6m x 2.8m and a bedside table should fit either side, although around 3m x 3m will feel comfortable rather than tight.
- A firm surface for two: The extra firm build means very little sink, which should help each of you stay on your own half, although lightweight side sleepers may find it hard on shoulders.
- Kind to a stretched budget: If you're furnishing a whole home at once, the Adagio sits at the lower end of the market, so a UK double here leaves more for everything else.
- A proper bed for visiting couples: In a spare room, a UK double gives guests a genuine shared bed, though anyone who sleeps on their side may find the extra firm surface a little unforgiving.
This size suits you if...
You share the bed with a partner and want a firm, supportive surface in a typical UK bedroom, or you're kitting out a guest room or first home and need a couple's bed that still leaves space for bedside tables.
Consider another size if...
You both like to sprawl, or one of you is tall enough to find 190cm short. We'd recommend the UK king instead, and suggest a room of at least 2.7m x 2.9m for it.
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FAQ's
What size is the Romantica Adagio UK double in feet?
The Romantica Adagio in a UK double measures 4ft 6in x 6ft 3in, or 135 x 190cm. Standard UK double bed frames and divan bases are built to those dimensions, so it should drop straight onto an existing double base.
Is the Romantica Adagio UK double wide enough for two people?
For most couples, yes. The UK double gives 67.5cm each for two sharing, which is fine if you both sleep fairly still. The extra firm surface has very little sink, so you're less likely to feel pulled towards each other, but if either of you sprawls, the space will feel tight.
Will a Romantica Adagio double fit in my bedroom with bedside tables?
We suggest at least 2.6m x 2.8m for a UK double, which should allow a bedside table on each side. Around 3m x 3m is the comfortable norm if you also want a wardrobe and drawers without edging round the bed.
Romantica Adagio UK double or UK small double: which should I choose?
The UK double is 15cm wider than the UK small double, and both are the same length. For two people sharing every night, that extra width matters. If your room is tight, we suggest at least 2.4m x 2.8m for the UK small double, which suits a solo sleeper or occasional sharing better.
Is it worth sizing up to the Romantica Adagio UK king?
If you have the room, possibly. The UK king is 15cm wider and 10cm longer than the UK double, giving 75cm each for two sharing, so the UK double gives 7.5cm less each. We suggest at least 2.7m x 2.9m for the UK king.