Highgrove Halifax Super King Mattress in a Box
The Highgrove Halifax is a boxed mattress from Highgrove that arrives rolled and compressed, so it fits through narrow hallways and up awkward staircases more easily.
- Extra-firm feel for a flat surface
- Reflex foam eases pressure points
- Flip & rotate to even out wear
£318.28
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Highgrove Halifax Mattress in a Box
More available sizes
Mattress details
Mattress
Highgrove Halifax Mattress in a Box
Size
Firmness
Extra Firm
Construction
Rolled
Depth (cm)
Layers
2
Layer Details
White fibre fillings
A layer of white fibre fillings sits in the quilted cover, above the foam interior. It adds a little surface cushioning on what is otherwise an extra-firm mattress.
Advanced reflex foam core
The core is advanced reflex foam, designed to conform to your body's contours and spread your weight evenly. For you, that means fewer pressure points, while the overall feel stays extra firm.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- 90cm each for two sharing: Two people sharing get 90cm each, which means a restless partner turning over at 3am becomes far easier to sleep through.
- Boxed delivery suits this size: It arrives compressed and rolled, so the awkward stair turns and tight door frames that defeat a flat super king are much less of a problem.
- Room for the whole household: When a child pads in at night or the dog treats your bed as theirs, the extra width means everyone still gets a fair share.
- 30cm wider than a UK king: That extra width over the UK king is the difference between sensing every movement beside you and barely noticing it.
- Fills a large master properly: In a big bedroom or period property where a UK king can look undersized, the super king's footprint sits in proportion with the room.
This size suits you if...
You share the bed with a partner who fidgets or turns through the night, children or pets regularly end up in with you, or you have a large master bedroom where a UK king would look a little lost. Your room should comfortably clear 3m x 2.9m, with space to walk round both sides.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest as a minimum, or the bed would leave you squeezing past furniture. We'd recommend the UK king instead: the same 200cm length, 30cm less width.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
How big is the Highgrove Halifax super king?
It measures 180 x 200cm, which is 6ft x 6ft 6in. That makes it 30cm wider than the UK king and 45cm wider than the UK double, with the same 200cm length as the UK king, so taller sleepers keep the extra legroom.
Will the Highgrove Halifax super king fit up my stairs?
More easily than most mattresses this size. The Halifax ships rolled and compressed in a box, so it can be carried up narrow staircases and round tight landing turns before you unroll it in the bedroom. A flat super king often can't make those turns at all.
What room size do I need for the Highgrove Halifax super king?
We suggest a minimum of 3m x 2.9m, and around 3.5m x 3.2m feels right, leaving space for bedside tables on both sides and room to walk around the bed. Measure with door swing in mind, since a super king frame can sit surprisingly close to the doorway.
How much space does each person get on a super king?
Two people sharing the Highgrove Halifax super king get 90cm each. That distance does more for broken sleep than any comfort layer can: a partner who shifts position all night is simply further away, and their movement is much less likely to wake you.
Is the Highgrove Halifax super king a good choice for families?
If children wander in during the night, or a large dog claims the foot of the bed as routine, the super king is the size that absorbs it. Everyone still gets a workable share of the 180cm width, which is rarely true on a UK king, let alone a UK double.