MattressNextDay Zante Ortho Traditionally Sprung King Size Mattress
The Zante Ortho is an affordable traditionally sprung mattress from MattressNextDay, pairing open coil springs with comfort foam for a Medium Firm feel.
- Traditional medium-firm sprung feel
- Even support across the whole surface
- Foam layer cushions shoulders & hips
£239
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MattressNextDay Zante Ortho Traditionally Sprung Mattress
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Mattress details
Mattress
MattressNextDay Zante Ortho Traditionally Sprung Mattress
Size
Firmness
Medium Firm
Construction
Foam
Orthopaedic
Open Coil Spring
Depth (cm)
24
Layers
3
Layer Details
Quilted Cover
The cover and fillings are stitched together to create a patterned comfort quilt layer. This gives the sleep surface a soft, slightly cushioned first impression before you reach the firmer support beneath.
Advanced Comfort Foam
A breathable foam that gently contours to your body shape, which means personalised comfort and tension relief at the shoulders and hips. It acts as the buffer between you and the spring unit below.
Open Coil Springs
Interlaced coils of high-tensile steel joined together in a lattice provide the core body support. Because the coils are connected, the whole surface works as one, giving that traditional, evenly firm feel.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- 75cm each for couples: Two people sharing get 75cm each, which means you can both change position without immediately meeting in the middle.
- Width softens the motion issue: Interlaced coils do transfer movement, but the extra distance a UK king puts between sleepers reduces how much of it you actually feel.
- Extra length for taller sleepers: At 200cm long, it's 10cm longer than the UK double, so anyone nearing six foot stops sleeping with their feet at the edge.
- Consistent medium firm feel across the surface: The lattice of connected coils supports the whole surface as one, so the feel stays even from centre to edge across the full 150cm width.
- Affordable route to a bigger bed: Sizing up usually stings, but the Zante Ortho sits at the budget end, so the jump to a UK king stays manageable; compare the retailers listed on this page.
This size suits you if...
You share the bed every night and a double has started to feel cramped, especially if one of you gets up hours before the other and every movement carries. It also suits you if one partner is close to six foot and needs the 200cm length, or if a dog has quietly claimed part of the mattress and you'd like your share back.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest for a UK king, or you mostly sleep alone. We'd recommend the UK double instead, and allow at least 2.6m x 2.8m for it.
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FAQ's
Is the Zante Ortho in a UK king good for couples?
With one caveat. The 150cm width gives you 75cm each, so a fidgety partner is further away, which helps. The open coil unit does transfer more movement than pocket springs, though, so very light sleepers sharing with a restless partner may still notice it. For most couples the extra space makes sharing noticeably easier than on a double.
How much bigger is the UK king Zante Ortho than the double?
The UK king is 15cm wider and 10cm longer than the UK double. Shared between two, that works out at 7.5cm more space each, roughly a hand's width per person, which is more useful than it sounds when one of you shifts around at night. The extra length is the quieter win for taller sleepers.
What size room do I need for a king size Zante Ortho?
We suggest a room of at least 2.7m x 2.9m, with around 3.2m x 3.2m feeling genuinely comfortable. That's our own guidance rather than the manufacturer's. New build master bedrooms can be tighter than they first appear once wardrobes go in, so measure the usable floor space, including door swing, before you commit.
Is the UK king long enough for someone over six foot?
At 200cm, it suits most people up to around 6ft 3in comfortably. If length is your reason for upgrading, the UK king is the right move within this range: it's 10cm longer than the UK single, small double and double, all of which are 190cm. The Zante Ortho doesn't come in a longer size than this.
Where can I compare prices for the Zante Ortho UK king?
Right here on this page. The prices shown are pulled from retailers' live listings and updated as they change them, so the table below reflects what you'd actually pay today rather than a figure that has gone stale. It's a budget mattress, so even in the UK king the outlay stays modest.