Made with 1000 pocketed springs – No 1 supports your whole body and responds to every movement. Its hand filled with deep layers of wool & cotton to offer total comfort as well as breatheability. And we tuft it by hand – keeping fibres in place so they don’t shift over time. No.1 is finshed with a woven layer of Belgian Damask. Known as ticking, it offers a smooth & uninterrupted feel across the whole mattress. Mattress Tension: One tension.