• 18cm orthopaedic memory foam spring mattress small double
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18cm Orthopaedic Memory Foam Spring Mattress – 4ft Small Double

18cm Orthopaedic Memory Foam Spring Mattress – 4ft Small Double

£147.99 GBP
£147.99 GBP
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Small rooms are where mattress choices matter most, because there is no space to hide a poor decision. The 18cm orthopaedic memory foam spring mattress in 4ft small double is a value-focused hybrid built for exactly those rooms.

Why a small double with an orthopaedic feel

At around 120cm wide, a 4ft small double gives a single sleeper far more freedom than a 3ft single while leaving floor space in boxrooms, loft rooms and flats. The orthopaedic styling leans towards firmer, more supportive comfort, which many people prefer for back and general spinal alignment, while the memory foam layer softens the surface over a spring base.

Who it suits

Single adults in compact bedrooms, teenagers who have outgrown a single, and guest rooms that need to sleep one person comfortably. At 18cm deep it is light enough to handle without help and sits neatly on most small double frames and divans.

Specification

  • Size: 4ft small double (approx. 120 x 190cm)
  • Depth: 18cm
  • Style: orthopaedic, firm-leaning
  • Construction: memory foam over a spring base

Compare other hybrid mattresses, browse small double and double mattresses, or see orthopaedic mattresses.

Frequently asked questions

Is a 4ft small double big enough for two people?

It can work for occasional sharing, but at roughly 120cm most couples will be more comfortable on a 4ft6 double or larger.

How firm does orthopaedic mean?

It describes a firm-leaning, supportive style rather than a medical grade. The memory foam top layer adds cushioning so it does not feel like a board.

Will 18cm be deep enough for nightly use?

It is a moderate depth. For regular use by one person it is perfectly serviceable, though deeper mattresses offer more cushioning.

Does it suit a divan base?

Yes, as long as the divan is a 4ft small double (about 120 x 190cm).

How do I look after it?

Use a breathable protector, air the room regularly and rotate the mattress head to foot every few months unless the care label says otherwise.

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Frequently Asked Questions

What is an 18cm orthopaedic hybrid mattress for a small double bed?
A hybrid mattress combines a pocket spring layer with memory foam comfort layers. This 18cm hybrid mattress is made in the 4ft small double size and has a firm, supportive orthopaedic-style feel, so it suits people who prefer a more structured sleeping surface.
What are the dimensions of a 4ft small double hybrid mattress?
A 4ft small double mattress is a standard UK size of about 120cm wide by 190cm long. It sits between a single and a full double, which makes this hybrid mattress a good fit for guest rooms, box rooms and smaller bedrooms.
Will this small double hybrid mattress fit my bed frame?
It fits a frame with an internal sleeping area of roughly 120cm by 190cm. Measure the inside of your frame before ordering, and leave a little room so the mattress sits snugly without being squeezed against the headboard or footboard.
Who is an orthopaedic-style hybrid mattress best suited to?
This 18cm hybrid mattress suits sleepers who like a firm, supportive surface with a little foam comfort on top. It is a sensible choice for adults who find very soft beds too sinky. It is a comfort preference, so check the product page for firmness and depth.
How is the spring and memory foam construction layered?
The core is a layer of springs that move independently to follow your body, topped with memory foam for pressure-relieving comfort. Together they give a balance of support and cushioning, with the springs adding bounce and airflow that a plain foam block lacks.
How firm is an orthopaedic memory foam spring mattress?
Orthopaedic-style mattresses are made to feel firm and supportive rather than plush. Expect a flatter, more upright feel with a thin layer of foam comfort at the surface. If you prefer a soft, enveloping bed, a different hybrid may suit you better.
Does a spring hybrid sleep cooler than an all-foam mattress?
Generally yes. The spring layer leaves space inside the mattress for air to move, whereas a dense foam block can hold warmth. A hybrid is usually a comfortable choice if you tend to overheat, although the memory foam layer still has some warmth.
Is 18cm deep enough, and will it work with my headboard?
At 18cm this is a slimmer hybrid than the thicker 25cm or 28cm models, so it keeps a lower profile on the bed. That is useful with tall bases or fixed headboards. Always compare the height with your frame sides so the mattress is not sitting too low.
What bedding fits a 4ft small double mattress?
Look for bedding labelled small double or 4ft. Standard double fitted sheets are usually too loose, so a correctly sized sheet keeps the surface smooth. Check the sheet's stated depth against the 18cm mattress so it tucks in neatly.
How do I care for this hybrid mattress and compare it with pocket sprung?
Rotate the mattress head to foot every few months and air the room regularly to keep it fresh. Compared with a pure pocket sprung mattress, this hybrid adds a memory foam layer for extra cushioning, while a plain pocket sprung bed feels bouncier.