Harrison Spinks Oasis 5500 Firm Mattress
Mattress
Harrison Spinks Oasis 5500 Firm Mattress
Size
Firmness
Firm
Construction
Depth (cm)
Layers
Layer Details
- Made for typical UK bedrooms: At 4ft 6in x 6ft 3in, the UK double fits comfortably in rooms where a larger size would leave you squeezing past the footboard.
- Independent springs matter more when sharing: Pocket springs respond separately under each sleeper, which means your partner's movement is far less likely to travel across a shared 135cm surface.
- Firm support for two: A firm feel keeps the surface level under two different body weights, so neither of you rolls towards the middle.
- Room for bedside tables: In most doubles-sized rooms this footprint still leaves space for a table on each side, which a UK king often takes away.
- Easy to dress: Double sheets and 200 x 200cm duvets are stocked everywhere at every price, so replacing bedding never becomes a hunt.
This size suits you if...
You share the bed and your room sits around the typical UK size, where a bigger mattress would dominate; you're furnishing a first flat or a full house and want the classic shared size that fits almost any room; or you sleep alone but like space to spread out, perhaps with a dog or cat claiming a corner. Allow at least 2.6m x 2.8m of floor space.
Consider another size if...
You and your partner both want a firm surface but keep bumping elbows at 67.5cm each. The UK king is 15cm wider and 10cm longer; we'd recommend it if your room allows at least 2.7m x 2.9m.
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Is a UK double firm mattress good for couples?
Yes, with a caveat. The firm pocket spring build suits two sharers well, because each spring moves independently and the surface stays level under different weights. Space is the limit: 67.5cm each for two people sharing is comfortable for most couples, but restless sleepers or broader builds may prefer the UK king.
Will the Oasis 5500 Firm double fit in a small bedroom?
In most cases, yes. The UK double measures 135 x 190cm, and we suggest a room of at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That usually leaves space for a wardrobe and drawers too, which is why the double remains the default for first flats and second bedrooms.
Should I get the Oasis 5500 in a double or a king?
It comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, so it fits where a king would crowd out bedside tables. If you have at least 2.7m x 2.9m to spare and want more elbow room, the UK king is the more comfortable long-term choice for two.
Is the double Oasis 5500 a good guest room mattress?
It's a strong candidate, since a UK double accommodates visiting couples where a UK single can't. One thing to weigh: the firm feel divides opinion among occasional guests, as lightweight side sleepers may find it a little unyielding. For a room you also use yourself, that trade-off is usually worth it.
Where can I buy the Oasis 5500 Firm in a double?
Retailer stock changes often, so the most reliable answer is the live comparison table on this page, where prices are updated as retailers change them. Availability can differ between sizes of the same mattress, so if the UK double shows limited options one week, it's worth checking back before deciding.