Mattresses

Drift into comfort every night with this ultra-supportive, cloud-soft mattress. Designed with breathable layers and body-contouring support, it keeps you cool, aligned, and well-rested — no matter how you sleep. Wake up refreshed, recharged, and ready.

Which Mattress Is Right for You?

Model Spring Type Depth Firmness Best For From
The Cloud-Step Essential Bonnell Spring 18cm Light Firm Guest rooms, lighter sleepers £99
The Harmony Medium Firm Bonnell Spring 20cm Medium Firm Side & back sleepers, bunk beds £119
The Elegance Premier Pocket Spring 20cm Medium Firm Couples, motion-sensitive sleepers £129
The Steadfast Firm Bonnell Spring 25cm Super Firm (Ortho) Back sleepers, orthopaedic support £139
The Heritage Sovereign Pocket Spring 25cm Medium Firm Warm sleepers, premium support £159
The Opulence Grand Luxe Pocket Spring + Memory Foam 28cm Medium Firm Luxury feel, body-contouring comfort £179

How to Choose the Right Mattress

What firmness do I need?

Light Firm suits those who prefer a softer, more forgiving feel — ideal for lighter sleepers or guest rooms. Medium Firm is the most popular choice, hitting the sweet spot between pressure relief and support. Firm and orthopaedic options are best for back sleepers or those who need structured spinal support.

Bonnell Spring vs Pocket Spring — what's the difference?

Bonnell springs are interconnected, giving a traditional responsive bounce and robust support — great value for single sleepers. Pocket springs are individually wrapped, so each one moves independently. This reduces motion transfer across the mattress, making them the better choice for couples or those easily disturbed at night.

Does depth (cm) matter?

Yes — deeper mattresses generally mean more comfort layers between you and the springs. Our 18–20cm mattresses are a great fit for bunk beds, children's rooms, or everyday use. The 25–28cm models offer a more luxurious feel and are better suited to standard bed frames where depth isn't restricted.

Which mattress is best for couples?

The Elegance Premier and Heritage Sovereign are both pocket spring mattresses, which means movement on one side of the bed is less likely to disturb the other sleeper. The Opulence Grand Luxe adds a cooling gel memory foam layer on top, making it ideal for couples who want a premium, body-contouring feel.

Which mattress works for a bunk bed?

For bunk beds, a mattress with a lower profile is essential for safety and practicality. We recommend the Cloud-Step Essential (18cm) or the Harmony Medium Firm (20cm) — both are designed with bunk beds in mind and arrive vacuum packed and rolled for easy manoeuvring up stairs and through narrow spaces.

Looking for a bed frame to go with your mattress?

All our mattresses are designed to work with standard UK bed frames. Browse our Bed Frames collection for a full range of options, or explore our Storage Beds if you need extra space beneath your bed.

Why Buy from Fat Sofa?

Free delivery to UK mainland on all mattresses All mattresses arrive vacuum packed & rolled Allow 24–72 hours to fully expand after unboxing Bonnell and pocket spring options available Light Firm to Super Firm (Ortho) firmness range Prices from £99