Highgrove Ottawa Pocket 1000 Super King Mattress in a Box
The Highgrove Ottawa Pocket 1000 Mattress in a Box has individually sleeved pocket springs under a fibre and foam top, which means a medium to firm feel with less of your partner's movement reaching you.
- Medium-firm feel for back sleepers
- Minimises partner disturbance
- Hypo-allergenic fibre filling
£352.48
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 Ottawa Pocket 1000 Mattress in a Box
More available sizes
Mattress details
Mattress
Highgrove Ottawa Pocket 1000 Mattress in a Box
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Rolled
Depth (cm)
29
Layers
4
Layer Details
Pocket springs
Springs housed in their own cloth sleeves, smaller in diameter than open coils and independent of their neighbours. That means they respond separately, which cuts the movement you feel from a partner.
High-density advanced comfort foam
A high-density foam that works with the springs to give a medium to firm support. It adds body-contouring without making the mattress feel soft.
White fibre comfort layers
Generous white fibre layers, described as hypo-allergenic. They add a cushioned surface feel and may suit you if you're sensitive to fillings.
Advanced reflex foam
A deep layer of advanced reflex foam beneath the white fibre. It adds a supportive base to the comfort layers above.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- A full 90cm each: Two adults get 90cm of width apiece, which is 15cm more each than the UK king of this mattress gives.
- Distance from a restless partner: Width does more than any comfort layer to separate you from someone who kicks, and the individually sleeved springs limit how far the remaining movement travels.
- Room for late-night visitors: If a child or a large dog regularly joins you, the 6ft x 6ft 6in surface leaves the adults a usable share of the mattress.
- Fills a big room properly: In a period bedroom or a generous master, the UK super king sits in proportion where a UK king can look a little lost.
- Easier to get upstairs: It arrives vacuum packed in a box, so you're carrying a compact parcel up tight landings and turns rather than a rigid 180cm-wide mattress.
This size suits you if...
You share the bed every night with someone who tosses and turns, your children or a big dog often end up sleeping with you, or your bedroom is at least 3m x 2.9m and a UK king would look undersized in it.
Consider another size if...
Your bedroom falls short of 3m x 2.9m, or you need clear walkways around the bed. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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
What size bedroom do I need for a Highgrove Ottawa Pocket 1000 UK super king?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable once you add bedside tables and space to walk round. In a loft conversion, the sloping ceiling usually decides which wall the bed goes against, so measure your full-height floor area rather than the whole footprint.
How much space does each person get on the Ottawa Pocket 1000 UK super king?
Two people sharing get 90cm each. That's 15cm more each than the UK king and 22.5cm more each than the UK double. The UK super king is the same 200cm length as the UK king, so you gain width only, not length.
Is a UK super king big enough for two adults and a child?
It gives the most room of any size this mattress comes in, at 180 x 200cm. A small child who wanders in at night will still squeeze the adults a little, but each of you starts with 90cm rather than the 75cm each a UK king offers.
What bedding fits a Highgrove Ottawa UK super king?
You'll need UK super king sheets and a duvet of 260 x 220cm. The mattress is 29cm deep, so choose a fitted sheet whose pocket depth clears that comfortably, or the corners may slip off as you move.
Is the UK super king Ottawa Pocket 1000 hard to flip?
It's double sided, so flipping and rotating spreads wear, but a 180 x 200cm mattress is awkward for one person to turn. Plan on two of you doing it together. Highgrove doesn't publish a weight for this size, so check with the retailer if lifting is a concern.