Tredaire Dreamwalk 11mm Carpet Underlay - 15sqmUpgrade the feel of your carpet in one simple step. High Density 11mm is a luxury carpet underlay that adds instant softness underfoot, while helping your carpet stay looking better for longer. With an 11mm thickness, it brings a more cushioned, premium feel to bedrooms, lounges and dining rooms. It also helps your home feel warmer and quieter, thanks to strong insulation performance built in. 11mm high density comfort noticeably softer underfoot