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.
- More room each: You each get 75cm of width, which is 7.5cm more per person than the UK double, so an elbow or a turn over is less likely to wake your partner.
- Length for taller sleepers: At 200cm, or 6ft 6in, the UK king is 10cm longer than the UK double, which means feet stay on the mattress for anyone around six foot.
- Space to shift position: If you're propping pillows through pregnancy or the months after, the extra width lets you rearrange yourself without taking over your partner's side.
- Firm support across the full width: The interlaced open coil springs run edge to edge, so both sleepers get the same solid, extra firm surface rather than one sagging middle.
- Firm footing for getting up: The extra firm surface gives little sink, which makes sitting on the side and standing up a little easier if you're recovering from an injury.
This size suits you if...
You share the bed every night and have outgrown a UK double, one of you is over six foot and keeps running out of length, or you're on different schedules and want enough distance that an early alarm disturbs one person rather than two.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m once wardrobes are in. We'd recommend the UK double instead, where we suggest at least 2.6m x 2.8m.
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Is the Romantica Adagio UK king long enough if you're over six foot?
The UK king measures 200cm, or 6ft 6in, which is 10cm longer than the UK double. If one of you is around six foot, that extra length is often the real reason to upgrade, because feet and ankles stay on the mattress instead of hanging over the end.
How much space do two people get on a Romantica Adagio UK king?
Two people sharing get 75cm each. That's 7.5cm more per person than the UK double, which sounds small but is enough to stop you brushing against each other through the night, especially if one of you gets up hours before the other.
What size bedroom do you need for a UK king Adagio?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m comfortable. New build master bedrooms can feel roomy when empty and tighter once wardrobes and bedside tables go in, so measure with furniture in place before you order.
Is the Romantica Adagio in a UK king heavy to move?
Across verified owner reviews, the Adagio is described as substantial and hard to turn, and a UK king is a large mattress to handle. Romantica doesn't publish a weight for it, so if lifting or rotating it would be a struggle, plan for two people when it arrives.
Where can I compare prices for the Adagio UK king?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so check the live table before you buy rather than relying on a figure you saw elsewhere.