Our luxury mattresses are made by expert craftsmen who combine traditional mattress making methods with innovative technology. The mattress is constructed of supportive pocket springs topped with a blend of sustainably-sourced Herdwick wool, cotton and cashmere. Find out below about the materials we use and how we build your herdysleep wool mattress.

Sleep surface

We believe a natural sleeping surface is best, which is why we have developed a chemical-free fabric that is used on the surface of mattress. Derived from plants and woven in our Yorkshire workshop, you can rest easy in the knowledge that you’re sleeping on something natural.


At least one Herdwick fleece lies at the heart of every one of our mattresses. Directly sourced from farmers in the Lake District, we make sure that we pay fair prices, so by choosing herdysleep you’re helping us support Herdwick farmers.

The wool is cleaned, carded and blended with cotton and cashmere for soft, sumptuous,  bouncy fibres. It is then shaped into a pad for the mattress.

As well as being naturally flame-resistant and hypoallergenic, wool is highly absorbent and breathable, so you will stay cool and fresh throughout the night.


The Herdysleep mattress features Cortec™ spring technology. Cortec™ is a fully sustainable, glue-free spring system which means that it is 100% recyclable. Using patented, fine wire technology, with small, tightly coiler springs, Cortec™ provides better contouring accuracy. A common problem for all existing pocket spring units is the glue contaminates the pocket cloth, making it difficult to recycle. Because Cortec™ doesn’t use any glue, it can be 100% recycled at the end of its life.

Sitting atop the sustainable Cortec™ core is a layer of our micro-sized comfort springs.  These tiny springs are designed to provide unrivalled comfort, contouring to the shape of the sleeper’s body and reducing the build up of pressure.


How it’s made

Attaching the border

A border is carefully attached to the mattress core, before the layer of micro sized pocket springs and natural fillings are placed on top, all of which are then covered with our natural sleep surface.

Hand clipping mattress border


Tufting is a traditional manufacturing method used in making mattresses. Here at herdysleep, we hand-tuft the mattress to make sure that each one has the best possible finish.

Tufts are driven through the entire mattress at regular intervals, securing all the layers of pocket springs and wool in place.


The final step in handcrafting a herdysleep mattress is tape-edging. A highly skilled procedure, our craftspeople use a tape-edging machine to attach the sleep surface to the mattress borders.

Handmade Mattress