This 13.5 gauge bonnell spring unit, Premier Mattress provides a 900gsm spring insulater pad and 270gsm polyester filling tohelp you get the best night\'s sleep. With high quality stitch quilting, and a Belgium damask quilted cover, this mattress provides the maximum comfort level you need. FEATURES:• Fabric : Quilted Damask• Material : Bonnell Metal Spring Unit• Made Exclusively in the UK• 13.5 Gauge Bonnell Spring Unit • Plastic Side Edge Supports • 900 gsm Spring Insulator• 270 gsm Polyester Filling • With high quality stitch quilting, and a Belgium damask quilted cover • Mattress depth - 18cm DIMENSIONS:• Height : 18cm• Width : 137cm• Depth : 190cm