Queen size, 11.5-inch mattress Thickness, pocketed coil spring system. Thickness 30.5 cm/12 inches. Provides e x cellent support for better spinal alignment. Warranty: 10 years Warranty (T and C refer to warranty card). ENGLANDER-11.5IN Queen Pocketed Coil MATTRESS-5-Zone Support Pocketed Coil+Reinforced LATEX+WOOL. Bedroom.. The Pocketed Coil system is designed to provide responsive support and help minimise motion transfer for a more comfortable rest. 5-Zone Support is designed to provide targeted support across different areas of the body. Bring a more inviting sense of comfort to your Bedroom and create a space made for winding down at the end of the day.