Harrison Spinks Fitzgerald King Size Mattress
The Harrison Spinks Fitzgerald is a firm, natural-fibre mattress with 11,000 springs across six layers, which means support that adapts closely to your body rather than pushing back in one flat plane.
- Firm support that eases shoulders & hips
- Breathes well for cooler nights
- Traceable wool, farm-grown hemp & flax
£2,999
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Harrison Spinks Fitzgerald Mattress
More available sizes
Mattress details
Mattress
Harrison Spinks Fitzgerald Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
35
Layers
3
Layer Details
Pillow top surface
A deeply filled pillow top with micro springs and natural fillings, which means a softer, cloud-like feel at the surface before you reach the firmer support below. This takes the edge off the firm rating for the first few centimetres.
Natural fillings
Fully traceable British wool and cotton, plus hemp and flax sourced straight from the Harrison Spinks farm. Natural fibres like these help the mattress breathe, which means a cooler night if you tend to overheat.
Pocket springs
11,000 responsive springs in dynamic layers of high-density micro, Posturfil and Cortec™ pocket springs. Six layers adapt to your body as you sleep, relieving pressure while letting air move through the mattress.
Layer details from featherandblack.com product page, September 2026.
Key benefits
- Space to sleep apart, together: At 75cm each for two people sharing, you can both stretch out without negotiating elbow room at 3am.
- Six spring layers limit disturbance: With 11,000 pocket springs working in six layers, movement stays local, so a partner leaving hours before you is less likely to wake you.
- Length for taller sleepers: At 200cm long, anyone approaching 6ft gets breathing room at the foot end that a standard-length mattress can't offer.
- Firm support across the full width: The firm build holds its shape edge to edge, useful when one of you gravitates to the same third of the bed as the dog.
- Natural fillings, more surface to breathe: Traceable wool, cotton, hemp and flax move heat away, and the wider surface means two warm bodies aren't trapped in one small pocket of air.
This size suits you if...
You share the bed every night and a double has started to feel like a compromise, one of you is on a different schedule and the other keeps waking, or someone in the bed is nudging 6ft and wants the extra length as much as the width. It also makes sense if pregnancy or recovery means shifting position and propping pillows through the night, when 75cm each stops feeling like a luxury.
Consider another size if...
Your bedroom can't comfortably give up 2.7m x 2.9m, which is common in a new build master once wardrobes go in. We'd recommend the UK double instead; it needs at least 2.6m x 2.8m and gives up only 15cm of width.
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FAQ's
Is the Harrison Spinks Fitzgerald in a UK king big enough for two adults?
Yes, comfortably for most couples. At 150 x 200cm you get 75cm each, and the firm surface with 11,000 springs keeps each side supported independently, so one person shifting or getting up early transfers less movement across the bed. If you want more separation still, the UK super king is the next step.
What room size do I need for a UK king Fitzgerald?
We suggest a room of at least 2.7m x 2.9m, which leaves space to walk around both sides and open drawers. That's our guidance rather than the manufacturer's. Measure with wardrobes and bedside tables in place, since a room that looks generous empty can tighten quickly once furniture arrives.
Is the UK king Fitzgerald long enough for someone over 6ft?
It's a better bet than most sizes. At 200cm long, it gives 10cm more length than the UK double, which matters once a sleeper approaches or passes 6ft. If you're well over that mark, note the UK super king is the same length, so sizing up buys width rather than extra legroom.
Should I choose the Fitzgerald in a UK king or a UK super king?
The UK super king is 30cm wider than the UK king and the same length, so it's purely about personal space. It also demands more room: we suggest at least 3m x 2.9m for it. If your bedroom sits between the two minimums, the UK king is the sensible pick.
Where can I buy the Fitzgerald in a UK king?
Availability shifts, so the most reliable answer is the live comparison table on this page, where prices are updated as retailers change them. Given this is a significant spend, it's worth checking the listing's own terms before ordering, since trial and delivery arrangements are set by the retailer rather than Harrison Spinks.