Bonnell Open-Coil Mattresses with Symmetric Padding

A connected hourglass-coil spring unit sits between matching foam, felt and quilted face layers. Compare three mattress widths on a 2000 mm length and 220 mm overall thickness, with the reversible layer schedule, border construction and bed-base interface organized for ordering.

Core construction
150 mm connected hourglass Bonnell coil unit with helical lacing
Mattress width
1500 W × 2000 L × 220 T mm · symmetric Bonnell build
Symmetric layer stack
3 quilt / 30 PU / 2 felt / 150 springs / 2 felt / 30 PU / 3 quilt, mm
Mattress width 1500 mm width

Connected Bonnell Springs and Matching Face Layers

150 mm Connected Hourglass-Coil Unit

Bare hourglass-shaped steel coils connect through helical lacing to form the 150 mm spring-unit layer. The connected spring construction remains the core reference for all three widths.

Matching Padding on Both Faces

Each side of the spring unit carries 2 mm felt insulation, 30 mm polyurethane foam and a 3 mm quilted face layer. The mirrored build establishes two finished sleeping faces within the 220 mm overall thickness.

Quilted White Faces and Gray Border

White polyester-knit quilted faces meet a gray polyester border at taped edges. Face quilting, border fabric, seam placement and edge tape use one approved textile and construction reference.

Complete white quilted and gray-border mattress with a small corner cutaway showing connected bare hourglass springs and matching padding above and below.

Three Widths with the Same Reversible Build

Three widths retain the same length, thickness and two-sided layer construction.

1500 × 2000 mm Main Size

The main mattress measures 1500 mm wide, 2000 mm long and 220 mm thick. Its width is carried through the spring unit, both padding stacks and the finished border.

1800 × 2000 mm Wider Size

The wider format keeps the 220 mm symmetric build on an 1800 mm width. Its mattress footprint and handling route are coordinated with the bed and room schedule.

1000 × 2000 mm Single Size

The single format uses the same layer sequence and 2000 mm length at 1000 mm width. It receives its own bed reference and textile quantities within the order.

Bonnell Mattress Configuration Dimensions

Core construction150 mm connected hourglass Bonnell coil unit with helical lacing
Mattress width1500 W × 2000 L × 220 T mm · symmetric Bonnell build
Length and overall thickness2000 L × 220 T mm
Symmetric layer stack3 quilt / 30 PU / 2 felt / 150 springs / 2 felt / 30 PU / 3 quilt, mm
Each face padding30 mm polyurethane foam over 2 mm felt insulation
Face and border textileWhite polyester-knit quilting; gray polyester border; taped edges
Bed interfaceFinished mattress footprint and base support arrangement by bed reference
Supply unitOne two-sided finished mattress with bed/room label and protective packing
Main 1500 × 2000 mm plan and the seven-layer symmetric stack totaling 220 mm. Open product drawing ↗

Bed Base, Bedding Depth and Room Handling

Pair the Mattress with the Bed Base

The bed schedule carries the mattress footprint, base support arrangement and edge support. Base openings, slats and any recessed surround follow the final spring-unit and bed construction.

Coordinate Bedding and Finished Height

Carry the 220 mm mattress thickness into fitted-sheet pocket depth, protector dimensions and overall bed height. Bedding dimensions follow the finished mattress and the intended laundering reference.

Plan Reversal and Handling Access

The symmetric face build supports a two-sided use schedule. Room access, bed clearances and staff handling arrangements account for lifting and turning the complete mattress.

Bonnell Mattress Supply Schedule

Mattress Sizes and Bed References

Count 1000, 1500 and 1800 mm widths at the common 2000 mm length and 220 mm thickness. Mark each unit against its room and bed reference.

Spring Unit and Padding Stack

Schedule the 150 mm connected Bonnell unit, 2 mm felt, 30 mm foam and 3 mm quilted face on each side. The material order records coil/lacing details and the agreed foam specification.

Ticking, Border and Edge Finish

Quote the white knit face, gray border, quilting pattern and taped edges together. Labels, textile references and edge construction form part of the finished mattress package.

Protection and Receiving Route

Set unit labels, protective wrapping and handling method around the actual receiving route. Packing form, delivery quantity and storage arrangement are listed with the destination.

Bonnell Mattress Order Configuration

Sizes
Width, 2000 mm length, 220 mm thickness and bed quantities
Build
Spring/lacing specification, mirrored foam/felt layers and quilting
Textiles
White face, gray border, edge tape and labels
Delivery
Wrapping, receiving route, storage arrangement and destination

Open-Coil Mattress Questions

What connects the springs in this mattress?

The 150 mm spring layer uses bare hourglass-shaped Bonnell coils linked by helical lacing. The connected unit forms the core between the two matching padding stacks.

How is the 220 mm thickness calculated?

The stack is 3 mm quilt, 30 mm foam, 2 mm felt, 150 mm springs, 2 mm felt, 30 mm foam and 3 mm quilt. These seven layers total 220 mm.

Can both faces be used?

The upper and lower faces carry the same quilt, foam and felt build. The bed and handling schedule includes the planned mattress reversal arrangement.

Which widths share this construction?

The widths are 1500, 1800 and 1000 mm, each at 2000 mm length and 220 mm overall thickness. Width changes retain the same symmetric layer sequence.

Which bedding dimensions follow the mattress?

The fitted sheet and protector use the finished mattress length, width and 220 mm depth. Their pocket allowance and laundering reference are coordinated with the bed package.

What is included in one supply unit?

One finished mattress includes the connected spring unit, both padding stacks, quilted faces, gray border, taped edges and identification label. Protective packing and delivery references are itemized with the order.

Request a Bonnell Mattress Quote

Complete white quilted and gray-border mattress with a small corner cutaway showing connected bare hourglass springs and matching padding above and below.
Bonnell Open-Coil Mattresses with Symmetric Padding1500 mm width
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