This sleepeezee westminster 3000 mattress is built with 3000 pocket springs providing a very supportive and comfortable surface the sleepeezee westminster 3000 mattress is filled with luxurious natural fillings including british wool and silk the westminster mattress is covered with a sanitized sleep surface to protect from mitesthe sleepeezee westminster 3000 mattress also has 4 rows of hand stitching as well as felt tufts to add to this truly divine mattress