Baronet (Regular). Natural fibres of lambs wool and cotton fill this pocket sprung mattress; wool acts as an insulator while cotton has absorbent properties. 1200 pocket springs are double tempered for extra long-lasting strength, this is a Hypnos specific process which takes a great deal of time and effort. Available with either a regular or firm tension, depending on your orthopaedic needs. And buy this Baronet (Regular) Now £659.00.