This Open Coil Memory Foam mattress has been designed with a traditional 13.5 open coil gauge Bonnell spring system, with a layer of Memory Foam that moulds and shapes to the sleeper’s body relieving pressure from building. Designed with a breathable shell patterned design for the top panel, the fabric is super soft allowing the sleeper to enjoy pure comfort as they lay and sleep. The mattress depth is 7” inch approximately 18cm with a firmness of medium soft. This mattress is the perfect choice for your next purchase. Delivered vacuum packed, rolled, and boxed. An open coil spring system allows the weight to be distributed across the mattress. A comfort layer of next-generation Memory Foam 7 Individual comfort layers Mattress depth - 7" inch (Approximately 18cm) Vacuum packed, rolled and boxed Breathable fabric designed with hypoallergenic and anti-dust mite features.