WHICH WOOL UNDERLAY SHOULD YOU BUY?

Why are some wool underlays more expensive than others? - GSM stands for Grams Per Square Meter. The higher the grams the higher the quality and thickness, similar to a thread count in bed sheets. Many companies do not let consumers know as they sell an inferior quality underlay, perhaps between 300-500 gsm. Sleepy Sheep wool underlays are proudly 800 gsm (Reversible Range) and 975 gsm (Elite Range) respectively as we know our customers deserve absolute quality and comfort. Inferior underlays may also be filled with a polyester mix in the quilted part, which you can not see. But Sleepy Sheep wool underlays are naturally only 100% wool throughout- including all fillings. Also, all underlay are stitched through the backing, not glued on as many poor quality wool underlays are, preventing wool loss.

https://www.sleepysheep.com.au