Miracoil springs and memory foam. 25mm of body moulding memory foam combined with the 3 zone spring system creates a great balance of support and comfort, with extra support in key areas. Silentnight's own EcoComfort Fibre is proven to dramatically reduce heat build up. The cover is high density stretch fabric which is micro quilted in place. 5 year warranty.
Please note as this is a memory foam mattress, you may expect a slight odour within the first week of use. This is due to the fire retardant spray used on the memory foam.