Mattress Online Classic Gold Ortho Mattress
Mattress
Mattress Online Classic Gold Ortho Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
26
Layers
3
Layer Details
- Comfort Layer. Soft white synthetic fibres sit at the top, which means a cosy initial feel rather than a firm, flat surface. They're durable and resilient, designed to hold their shape over time.
- Support System. Traditional open coil springs are interlaced and joined in a lattice design, which means your weight is distributed evenly across the bed. That helps relieve built-up pressure and supports spinal alignment, the core job of an orthopaedic mattress.
- Cover. A knitted cover gives a soft, warm finish. It also enhances airflow and is breathable, which helps if you run a little hot at night.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits the smallest bedrooms: At 90cm wide it leaves floor space free, so a child's room can still hold a wardrobe, desk and toy storage alongside the bed.
- Firm support as children grow: The medium firm open coil lattice spreads weight evenly, which means steady spinal support for a growing teenager rather than a saggy hammock feel.
- A practical guest room choice: In a spare room that doubles as an office, a UK single keeps the desk usable, and its firmer feel suits occasional guests well.
- Two singles, one shared room: Where siblings share, a pair of 90cm-wide beds plus a walkway is achievable in most UK bedrooms, which a wider size rarely allows.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're kitting out a child's or teenager's room and want firmer support at a low price, you sleep alone in a compact bedroom or first flat, or you need a spare room bed that leaves space for a desk. It also suits a loft conversion where only a narrow footprint fits under the slope.
Consider another size if...
You're an adult who finds 90cm of width restrictive, or two of you will share the bed. We'd recommend the UK double instead: it gives 67.5cm each for two sharing, and we suggest allowing at least 2.6m x 2.8m of floor space.
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Will the Classic Gold Ortho UK single fit a bunk or mid sleeper frame?
The footprint matches standard UK single frames at 90 x 190cm, so bunks, cabin beds and mid sleepers built to that size will take it. Do check depth before buying: this mattress is 26cm deep, and raised frames have guard rails that must sit safely above the mattress surface, so measure your frame's rail height first.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves room to walk alongside the bed and open drawers or a wardrobe. In a child's room competing with toy storage and a desk, the 90cm width is exactly why this size works where nothing larger would.
Is the Classic Gold Ortho single a good choice for a child or teenager?
It's a reasonable fit. The medium firm open coil support suits growing bodies that need a stable, even surface, and the budget price makes sense for a bed that will be outgrown. One caveat: lightweight side sleepers can find the tension a little solid, so a smaller child who sleeps on their side may prefer something softer.
Can I put two Classic Gold Ortho singles in one shared kids' room?
Often, yes. Each bed needs a 90 x 190cm footprint, and you'll want a walkway between or beside them, so measure your room against two beds plus at least 2.1m x 2.8m of usable space around each sleeping area. Two singles are usually easier to arrange in a shared room than one larger bed.
How much bigger is a UK small double than the UK single?
The UK single is 30cm narrower than the UK small double, and the two are the same length at 190cm. If you're buying for a teenager who wants more sprawling room but the bedroom is tight, the UK small double is the natural step up; we suggest allowing at least 2.4m x 2.8m for it.