Highgrove Solar Ortho Dream King Size Mattress
The Highgrove Solar Ortho Dream is an extra firm open coil mattress with a Bonnell spring unit under a hand tufted Belgian damask cover.
- Even, extra-firm support
- Edges won't sag when you sit
- Less clammy on warm nights
£248.56
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Highgrove Solar Ortho Dream Mattress
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Mattress details
Mattress
Highgrove Solar Ortho Dream Mattress
Size
Firmness
Extra Firm
Construction
Orthopaedic
Open Coil Spring
Depth (cm)
27
Layers
4
Layer Details
Cover
A hard wearing Belgian damask cover with a hand tufted finish. The tufting isn't just decorative: it adds strength and helps the mattress hold its shape over time.
Fillings
Several layers of quality fillings, including white fibre, a lightweight, high loft material that's hypo-allergenic and keeps its shape, alongside Tencel. Tencel is a eucalyptus treated fibre that improves heat flow and moisture dissipation, which means less clamminess on warm nights.
Spring System
An extra firm open coil unit made of rows of hourglass shaped Bonnell springs, connected top and bottom by a helical wire running from head to foot. This gives a firm, uniform feel across the whole surface rather than the contouring you'd get from pocket springs.
Edge Support
A thick rod-edge wire strengthens the perimeter of the spring unit. In practice that means firmer edges to sit on and less of the border breakdown that cheaper open coil mattresses can suffer.
Layer details from archerssleepcentre.co.uk product page, September 2026.
Key benefits
- 75cm each for couples: Two people sharing get 75cm of width apiece, which means fewer accidental elbows and less waking each other on a spring unit that does transmit movement.
- Distance from a restless partner: Bonnell springs are connected across the bed, so a fidgeting partner is noticeable; the UK king's width puts more mattress between you than a UK double can.
- 200cm of length: The UK king runs 10cm longer than a UK double, which means anyone approaching or past six foot stops sleeping with their feet at the very edge.
- Firm edges across a wide bed: The rod-edge wire stiffens the full perimeter, so even with 150cm of width you can sleep right at the border without it collapsing away.
- Tencel over a bigger surface: The eucalyptus treated fibres help move heat and moisture away, and two sleepers spread across a UK king generate less trapped warmth between them anyway.
This size suits you if...
You share the bed every night and a UK double has started to feel like a negotiation, especially if one of you gets up hours before the other or a dog claims a share of the mattress overnight. It also makes sense if either of you is around six foot or taller, since the 200cm length is a genuine upgrade over standard-length sizes.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest as a minimum for a UK king. In that case we'd recommend the UK double instead: it keeps the same extra firm feel in a footprint most rooms handle comfortably.
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FAQ's
Is the Highgrove Solar Ortho Dream in a UK king good for couples?
Yes, with one caveat. Open coil springs carry movement across the bed more than pocket springs, so a restless partner is easier to feel. The UK king's 150cm width, 75cm each for two people sharing, gives you enough separation that most couples find it manageable, and the firm surface itself moves less than a softer one would.
What room size do I need for a UK king mattress?
We suggest a minimum of 2.7m x 2.9m, with around 3.2m x 3.2m feeling comfortable once wardrobes and drawers are in. New build master bedrooms can be tighter than they first appear, so measure with your furniture in place before committing. If the numbers don't work, the UK double is the sensible step down.
Is the UK king long enough for someone over six foot?
At 200cm, or 6ft 6in in old money, it gives most tall sleepers real clearance rather than toes hanging off the end. If one of you is over six foot, the length is often a bigger reason to choose a UK king than the width. The extra firm surface also keeps you supported right to the foot of the bed.
How much bigger is the UK king than the double?
The UK king is 15cm wider than the UK double and 10cm longer, at 150 x 200cm against 135 x 190cm. On this mattress the width does the heavier lifting for couples, since more distance between you reduces how much of your partner's movement travels through the connected Bonnell spring unit.
Where can I buy the Solar Ortho Dream in a UK king?
Availability shifts, so the most reliable answer is the live comparison table on this page, which is updated as retailers change their prices and stock. Check the UK king row specifically, because a listing for the model doesn't always mean every size is in stock at that moment.