Queblox 4FT6 Double Mattress, 11 Inch 7-Zone Pocket Sprung Mattress with Memory Foam and Soft Knitted Fabric, Medium Firm, Motion Isolation White 135x190x28cm

Overview

The Queblox 4FT6 Double Mattress is an 11-inch (28cm) hybrid combining a 7-zone individually pocketed spring system with a memory foam topper and reinforced edge springs, aimed at a medium-firm feel. It holds a 4.4-star average across 856 reviews at the time of collection.

Performance

Queblox positions this as a premium pocket spring mattress blending support with value, targeting a medium-firm feel most British sleepers are said to prefer. The brand states each spring moves independently, keeping a partner's movement on their side of the bed, and that the mattress expands in 2-4 hours with 48 hours recommended for full shape; a slight new-mattress smell is described as normal, fading within 48 hours. A 7-zone pocket spring system, with each spring independently supporting the head, shoulders, back, hips, thighs, knees and feet to reduce pressure points, individually wrapped to adapt to the body while minimising motion transfer.

Design & Build

Ultra-breathable fabric combined with wave-cut foam is stated to enhance airflow and prevent heat buildup through an open-cell structure. Polyester

Installation

Queblox positions this as a premium pocket spring mattress blending support with value, targeting a medium-firm feel most British sleepers are said to prefer. The brand states each spring moves independently, keeping a partner's movement on their side of the bed, and that the mattress expands in 2-4 hours with 48 hours recommended for full shape; a slight new-mattress smell is described as normal, fading within 48 hours. Compressed in a box for delivery; expands to full size within hours, with 48-72 hours recommended for the internal structure to fully decompress.

Best For

• Buyers wanting zoned 7-point support at a competitive double-mattress price
• Couples who value reinforced edge support for sitting near the bed's perimeter
• Buyers who run warm at night and want a breathable, wave-cut foam design

Not Suitable For

• You need clarity on weight capacity before buying and cannot get retailer confirmation of the 80lb figure
• You want a mattress with a larger existing review history to gauge long-term reliability

Frequently Asked Questions