Alpha Kappa Black Pillow Top Mattress
The Alpha Kappa Black Pillow Top Mattress combines a plush pillow top with individually wrapped pocket springs, which means soft, cushioned comfort on the surface, steady support underneath and less disturbance from a restless partner.
- Plush pillow top cushioning
- Minimises partner disturbance
- Reinforced edges add stability
£328
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The Alpha Kappa Black Pillow Top is a 30cm pocket spring mattress with a plush pillow top, several foam layers and a soft knitted black cover. It's rated medium, so it sits in the middle of the firmness scale with a padded feel on top. It suits couples and anyone who likes a cushioned surface. It's listed in UK King. Mattress Online offers a 100-night trial, and a 10-year guarantee is listed. It's mid-range on price.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
30
Number of Layers
12
Trial Period (nights)
100
Warranty (years)
10
Price Range
£328
Best Sleeping Position(s)
Back Sleeping
Combination Sleeping
Side Sleeping
Certifications
BS 7177
Assessed from Alpha's published specification for this mattress, captured October 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The plush pillow top and soft roll foam layers give the surface a padded, cradling feel, while the high-density visco foam beneath adapts to your shape to ease pressure. Under that, individually wrapped pocket springs support each part of your body separately and cut down on motion transfer, which helps if your partner moves around at night. A reinforced foam edge keeps the sides stable. It suits most couples and side sleepers, although those who like a very firm bed may find the top too soft. It's single-sided, so there's no flipping to remember.
Key features & layer details
Knitted fabric cover
A soft-touch knitted outer cover that gives a breathable sleep surface. It's the first thing you feel, so it keeps the surface soft and airy.
Thermobond fibre
A fibre layer that helps the mattress keep its shape and structure. That supports durability over the long term.
Super soft roll foam
Soft foam layers that add plush, gentle cradling comfort. They give the pillow top its cushioned feel.
Non-woven fabric
A fabric layer that improves durability and flexibility while letting air move through. That means a cooler, more hygienic sleep.
High-density visco foam
A memory foam layer that adapts to your body's contours. It eases pressure and gives personalised comfort.
High resilient foam
A durable foam that supports you and springs back. It helps the mattress hold its performance over time.
Foam layer
A foam layer that balances support with shaping to your body. It helps spread pressure more evenly.
Second foam layer
An extra comfort layer that adds body contouring and support. It deepens the shaped feel of the upper mattress.
Pocketed coil spring system
Individually wrapped pocket springs that give targeted support, promote spinal alignment and minimise motion transfer. You get support that responds to each part of your body and less disturbance from a partner.
Foam encasement
Reinforced foam edges surround the spring unit. They improve edge support and keep the sides stable when you sit or sleep near the edge.
Felt layer
A felt layer that adds padding and support between the comfort layers and the spring core. It protects the layers above and helps durability.
Bottom quilt
The foundation layer of the mattress. It keeps the whole construction stable and structurally sound.
Layer details from alphabeddingco.com product page, October 2026.
Best suited for?
Couples
Individually wrapped pocket springs support each part of the body separately and cut down on motion transfer, so a restless partner is less likely to disturb you.
Side sleepers
A plush pillow top and high-density visco foam adapt to your shape and ease pressure, giving a cradling feel at the shoulders and hips.
Combination sleepers
A medium firmness with a padded top and reinforced foam edge gives a balanced feel and stable sides as you change position through the night.
If you prefer sleeping on a firm mattress, this might not be the best choice. It's rated medium and the pillow top adds a softer, more cushioned layer, so you'll feel it give. If you sleep hot, note that Alpha doesn't describe a dedicated cooling layer. It's also single-sided, so it can't be flipped.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Alpha Kappa Black Pillow Top Mattress
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FAQ's
How firm is the Alpha Kappa Black Pillow Top?
It's rated medium, so it sits in the middle of the scale. The pillow top and soft foam layers add cushioning, which suits most side sleepers and couples, although anyone wanting firm support may find it too soft.
How deep is the Alpha Kappa Black Pillow Top?
It's 30cm deep. That's a fairly substantial mattress, so check that your bed frame and bedding suit the extra height, particularly if your frame has a high headboard or a shallow recess.
Is the Alpha Kappa Black Pillow Top good for couples?
Generally yes. Its pocket springs are individually wrapped to minimise motion transfer, so you're less likely to feel a partner turning over. The reinforced foam edge also keeps the sides stable if you sleep near the edge.
Does the Alpha Kappa Black Pillow Top come with a trial or guarantee?
Mattress Online offers a 100-night trial, and a 10-year guarantee is listed. The trial is the retailer's own offer, so check its terms at the point of buying.
Do you need to flip the Alpha Kappa Black Pillow Top?
No. It's single-sided, so it isn't designed to be flipped. The pillow top and layers are built to be used one way up, which keeps day-to-day care simple.
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