Silentnight?s Miracoil? Onyx mattress incorporates silentnights unique Miracoil spring system and is covered in a luxurious micro quilted damask cover and contains generous layers of natural fillings for a luxurious feel. Suitable for divan bases and besteads with slats.

The Miracoil? mattresses feature a unique spring system which runs from head to toe, thus distributing weight up and down the mattress instead of across, eliminating ?roll together? and ensuring that each partner gets a comfortable and supportive night?s sleep. Extra springs are concentrated in the centre third of the mattress to create a supportive Posture Zone just where the body needs it most.