Harrison Spinks Emerald 16500 Pocket Mattress (Soft to Medium Feel)
Mattress
Harrison Spinks Emerald 16500 Pocket Mattress (Soft to Medium Feel)
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
5
Layer Details
- Comfort fillings. Layers of natural British wool sit at the top, shaping around your body as you settle. Wool is naturally breathable, so it cushions without trapping heat.
- Comfort fillings blend. Beneath the wool sits a blend of British wool, hemp and flax. This mix helps regulate temperature, which means you're less likely to be woken by warm nights or cold snaps.
- Comfort fillings blend. A further blend of cotton, hemp and flax fibres adds soft, breathable padding. It keeps the comfort layers airy rather than dense.
- Support system. 700 Cortec™ Quad springs, encased in cloth pockets and secured in groups of four, form the core. They respond to your weight, shape and movement individually, so support adjusts to you rather than the person next to you.
- Mini springs. 15,800 mini springs deliver a slightly bouncy comfort layer with small pockets for airflow throughout the mattress. They add responsiveness where foam layers would simply compress.
Layer details from mattressonline.co.uk product page, September 2026.
- Real room for one: At 30cm wider than the UK single, this size lets a solo sleeper stretch, roll and change position without meeting the edge.
- Fits compact double bedrooms: It's 15cm narrower than the UK double, which can be the margin between a bed that fits a box room and one that blocks the door.
- Natural fillings at this footprint: British wool, hemp, flax and cotton do the comfort work, so a warm sleeper in a small, less ventilated room stays a little cooler overnight.
- Springs that adjust to one body: The 700 Cortec™ Quad springs respond to weight and shape individually, useful for a lone sleeper who moves around across all that extra width.
- Works for occasional guests: Two people can share for the odd night, so it suits a guest room or holiday let where couples visit but nobody sleeps nightly.
This size suits you if...
You sleep alone and have outgrown a single, but your room hasn't grown with you. Perhaps it's a teenager's bedroom that can't lose more floor space, a loft conversion where a double leaves no standing room, or a second bedroom in a rental or holiday let that hosts occasional couples. If you want a softer, natural-filled bed in that 4ft footprint, this fits.
Consider another size if...
You share the bed every night, or your room can take the extra 15cm of width. Couples on this soft to medium build will feel cramped at 120cm, so we'd recommend the UK double instead, allowing at least 2.6m x 2.8m.
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Is a small double Emerald 16500 big enough for a couple?
For occasional nights, yes. Two people can share the 120cm width comfortably enough for a guest room or a weekend visit. For every night, it's tight: the UK double gives you 15cm more width at the same length, and a soft to medium mattress like this one feels more forgiving when you're not pressed together.
What room size do I need for a small double mattress?
We suggest at least 2.4m x 2.8m for a UK small double, which leaves room to walk round the bed and open the door. This is our own guidance rather than the manufacturer's. If your room comfortably exceeds 2.6m x 2.8m, the UK double becomes a realistic option.
How does the UK small double compare to the UK double in this mattress?
The UK small double is 15cm narrower than the UK double, and both are 190cm long. The construction is identical: the same springs, natural fillings and soft to medium feel. You're choosing purely on space, so let the room decide. For solo sleepers, the small double is usually plenty.
Is the Emerald 16500 small double good for a solo sleeper?
It's a strong match. The UK small double is 30cm wider than the UK single, so one adult gets proper spreading room, and the pocket springs respond to your weight individually wherever you settle. The soft to medium feel suits side sleepers especially, although heavier back and front sleepers may find it a little too soft.
Where can I buy the Emerald 16500 in a small double?
Availability shifts, so the most reliable answer is the live comparison table on this page, where prices are updated as retailers change them. It's a premium, handcrafted mattress, so stock in the UK small double is thinner than in a UK double or UK king, and comparing before you buy is sensible.