Highgrove Ottawa Pocket 1000 Small Double 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
£275.53
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
- Space to sprawl on your own: At 30cm wider than the UK single, it lets a solo sleeper lie diagonally or spread their arms without filling the room with a full double frame.
- Kinder to small bedrooms: Being 15cm narrower than the UK double can decide whether a box room door still swings open past the corner of the bed or catches on it.
- Works for the odd shared night: The pocket springs move independently, which means a guest couple staying for a weekend feel less of each other turning over than on an open coil mattress.
- Easier up awkward stairs: It arrives rolled and vacuum packed in a box, which helps when the route to a loft conversion or upstairs flat is too tight for a flat mattress.
- Bedding is simple to buy: 4ft is a standard UK width, so fitted sheets are easy to find on the high street, and a standard double duvet covers the 120cm width comfortably.
This size suits you if...
You sleep alone but like room to spread out, your bedroom is too compact for a UK double, or the bed is going into a guest room where couples stay now and then rather than every night.
Consider another size if...
Two of you will share the bed every night. We'd recommend the UK double instead, which gives 67.5cm each, and we suggest at least 2.6m x 2.8m for the UK double.
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 room size do I need for a Highgrove Ottawa Pocket 1000 small double?
We suggest at least 2.4m x 2.8m for a UK small double. That leaves room to walk around the bed and open doors and drawers. In a loft conversion with sloping walls, measure the floor where you can actually stand, then compare the retailers listed on this page.
Can two people sleep on a UK small double Highgrove Ottawa?
Yes, for occasional stays. The independent pocket springs cut down the movement you feel from a partner, which helps on a guest bed. For nightly sharing it's a squeeze, and the UK double is the better choice at 67.5cm each.
Is the UK small double Highgrove Ottawa long enough if I'm tall?
It's 190cm long, the same length as the UK double, so moving up to the UK double gains width but no length. If your feet hang off standard beds, the UK king is 10cm longer. We suggest at least 2.7m x 2.9m for the UK king.
Should I get a single or small double Highgrove Ottawa for a teenager?
If the room allows it, the UK small double gives a growing teenager 30cm more width at the same length. We suggest at least 2.1m x 2.8m for the UK single and at least 2.4m x 2.8m for the UK small double, so check which your room can take.
What size sheets fit a Highgrove Ottawa 4ft small double?
Buy small double (4ft) fitted sheets, and pair them with a standard double duvet. The mattress is 29cm deep, so check the sheet's pocket depth before buying, because shallower fitted sheets can pull off the corners.