Harrison Spinks Oasis 5500 Firm Super King Mattress
The Harrison Spinks Oasis 5500 Firm is a pocket spring mattress with a firm feel, which means springs move independently to follow your shape while keeping the surface supportive rather than sink-in soft.
- Firm feel for back & front sleepers
- Support where your body presses down
- Less tilting when sharing a bed
£1,559.75
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Harrison Spinks Oasis 5500 Firm Mattress
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Mattress details
Mattress
Harrison Spinks Oasis 5500 Firm Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
Layers
Layer Details
Key benefits
- 90cm each for two sharing: Each of you gets 90cm of width, which means a partner who turns over a dozen times a night becomes far easier to sleep through.
- Distance plus independent springs: Pocket springs respond separately where each body presses down, and at this width you're rarely close enough to feel your partner move at all.
- Room for night-time visitors: When children pad in at 3am, a UK super king means everyone keeps a workable share of the bed rather than one adult clinging to the edge.
- Firm support across the full width: The firm feel keeps the surface level edge to edge, so nobody rolls towards a dip even with three bodies aboard.
- Fills a large master properly: In a period property or generous new build master, a UK king can look a little lost; the UK super king sits in proportion to the room.
This size suits you if...
You share the bed every night and want the most space any standard UK size offers, your partner is genuinely restless and distance matters more to you than any comfort layer, or children and pets treat your bed as theirs too. You'll also need the room for it: allow at least 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable.
Consider another size if...
Your bedroom is under 3m x 2.9m, or you'd struggle to walk round the bed once wardrobes are in. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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FAQ's
Is the super king worth it over the UK king for the Oasis 5500 Firm?
If two of you share and one is a light or restless sleeper, usually yes. The UK super king is 30cm wider than the UK king and the same length, and that extra width is what turns a partner's tossing from a disturbance into background noise. If your room is tight, the UK king is the sensible compromise.
Does a firm mattress work well for couples in a super king?
It suits couples where both prefer a firm surface, particularly back and front sleepers or heavier builds. The pocket springs move independently, so one person's weight doesn't tilt the other's side, and 90cm each of width helps too. A lightweight side sleeper sharing this bed may still find it a little too firm, whatever the size.
How much space does each person get on the Oasis 5500 super king?
90cm each for two people sharing, across the full 180cm width. That's enough for each of you to stretch out, turn over and starfish a little without crossing an invisible border, and it leaves a usable margin when a child or dog joins in the night.
Will the Oasis 5500 super king fit in my bedroom with furniture?
The mattress itself is 180 x 200cm. We suggest a room of at least 3m x 2.9m, with around 3.5m x 3.2m feeling right once you add bedside tables on both sides and space to open wardrobe doors. Check the door swing and any landing turns too, because a mattress this size is awkward to manoeuvre.
Is the Oasis 5500 super king hard to get upstairs?
It's the trickiest size of this mattress to move, simply because of its 180 x 200cm footprint. Harrison Spinks doesn't publish a weight or depth for this model, so measure your stairwell, landing turns and door frames before ordering, and ask the retailer for those figures if your access is tight.