Spring Types and Features

Coil Sprung

Coil Sprung is the traditional type of spring found in most mattresses. These are coiled wires that are linked together in a metal net frame. These springs are also called Bonnell Sprung.

Pocket springs

Individual springs enclosed in separate flexible fabric pockets. The pockets are attached to adjacent pockets. This allows independent movement of each spring creating a more responsive feel.

Continuous Sprung

Coil springs linked together in one chain instead of the standard metal criss-cross metal connection.

Mini-Spring

Mini-springs are coil, pocket or continuous spring mattress that are shorter than normal and are laid on top of a normal nest of springs to prolong the life of the mattress.

Unicase technology

Unicase Edge technology is an outer casing holding the springs into position to help increase support and prevent spreading.

PostureTech / Triple Offset Spring System

Sealy's unique mattress spring systems. The offset coil design enables the springs to follow the line of the sleepers body due to their unique independent hinging action.

Miracoil®

The unique Miracoil® Spring System is manufactured from one continuous spring that runs head to toe distributing body weight up and down the bed. This ensures that the bed gives you and your partner the support you need, irrespective of differences in size and weight. The Miracoil® Spring System is combined with a number of different fillings to offer a complete range of comfort levels.

Mirapocket™ Spring System

Mirapocket™ combines the Miracoil spring system with innovative mini pocket springs to create a unique two-layer spring combination that is a first for Silentnight and the ultimate in luxurious comfort in support.

Twice Tempered Springs

Twice-tempered steel coils will return to their original height repeatedly over time for a consistent surface feel. Twice-tempered steel is 62% stronger than basic steel.