The Platinum is an 18cm (7 inch) Medium-Firm Mattress that is specifically designed for use with the upper bunk of Julian Bowen Bunk Beds due to height restrictions. A superior quality mattress with a low profile construction. FEATURES : Material : Low Profile Bonnell Metal Spring Unit, Quilted Damask Finish : White Made Exclusively in the UK Low Profile 13. 5 Gauge Bonnell Spring Unit 18cm depth to meet upper bunk height restrictions Medium-firm to provide support and comfort Rod Edge Supports 900 gsm Spring Insulator 500 gsm Polyester Filling Belgium Damask Quilted Cover Most classy and unique piece of furniture Matching furniture available Images shown are for illustration purpose only Available at an affordable price DIMENSIONS : Height : 18cm Width : 91. 5cm Depth : 190cm