With its natural British wool filling and 1000 pocket springs the Welwyn 1000, from Sleepeezee’s new Collection has been designed using a firmer spring, offering you correct spinal alignment and support with no compromise on comfort. This mattress is ideal if you suffer from aching joints or spinal problems as the pocket springs will work to sense your shape and evenly distribute your weight helping you to maintain a healthy body. This mattress is extra firm and comes with a 10 Year Guarantee. Wool is used in this mattress as a soft and insulating upholstery layer for added comfort. Wool is a natural insulator providing coolness in the summer and warmth in the winter. Offering superb comfort, it also has hydroscopic properties encouraging the evaporation of body moisture. The pocket spring system is the best at providing individual support to the sleeper. The upper part of the spring shapes to the body contours while the lower part absorbs changes in weight distribution for the ultimate in comfort and support. As a rule of thumb the higher the number of individual springs, the more support will be provided to the sleeper. The springs work independently to avoid roll together.