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
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.
- The classic shared size: At 135 x 190cm the UK double is Britain's traditional couples' size, giving 67.5cm each for two people sharing without dominating an average bedroom.
- Springs that suit sharing: The Cortec™ Quad springs respond to each sleeper individually, which means less disturbance across a shared 135cm width when one of you turns over.
- Room for bedside tables: In a typical UK room the double usually leaves space for bedside tables on both sides, something a wider size can quietly steal from you.
- Natural fillings for two warm bodies: British wool, hemp, flax and cotton breathe better than foam, useful when two people share a surface this size and heat has nowhere else to go.
- Easy to dress: Standard double sheets and a 200 x 200cm double duvet are stocked everywhere, so bedding for this size is cheap and simple to replace.
This size suits you if...
You share the bed every night and want the traditional couples' size, or you sleep alone and like room to stretch out, perhaps with a pet claiming a corner. It also fits if your bedroom is an average UK size and you want bedside tables on both sides without the bed swallowing the floor space, or you're furnishing a guest room that visiting couples will use.
Consider another size if...
You and your partner both like space, or one of you is tall, since the UK double is 15cm narrower and 10cm shorter than the UK king. If your room offers at least 2.7m x 2.9m, we'd recommend the UK king instead.
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Is a UK double Emerald 16500 big enough for a couple?
Yes, for most couples. The UK double gives 67.5cm each for two people sharing, and the Cortec™ Quad springs respond to each of you individually, so movement on one side is less likely to travel across. Restless sleepers or anyone over 6ft may prefer the extra width and length of the UK king.
What room size do I need for the Emerald 16500 in a double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves walking space on both sides and room for bedside tables, which matters with a mattress at this price. Our guidance, so measure your own room before ordering.
Should I buy the Emerald 16500 in a UK double or a UK king?
It comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, so the king suits couples with space to spare: we suggest at least 2.7m x 2.9m for it. In a smaller room, the double keeps space for tables and wardrobes.
Will a double Emerald 16500 fit up the stairs in an older house?
At 135 x 190cm and 29cm deep, the double is a manageable size for most staircases, and it's noticeably easier to manoeuvre round a tight turn than the wider UK king. A natural-filled pocket spring mattress shouldn't be bent or folded, though, so measure any awkward landings first.
How much does the Emerald 16500 cost in a double?
Prices change often, so we don't print a figure here. The live prices shown on this page are updated as retailers change them, so compare the retailers listed to see the current cost of the UK double. As a premium handcrafted mattress, expect it to sit well above entry-level doubles.