It may not look like it, but make no mistake, the NeoLoft is a true backpacking sleeping pad. From the inside out, every element of the NeoLoft comes together to deliver sublime comfort while remaining incredibly light and packable. 3D construction elevates the pad to 4.6 inches (11.7 cm) thick, making the NeoLoft a side sleeper's dream. Vertical sidewalls attach the top and bottom fabric and eliminate the tapering edges of non-3D pads. This increases the sleep surface by 20% and delivers excellent stability - you'll never feel like you're falling off while you adjust to get comfortable.