mummy sleeping bag 3d model

A long, narrow mummy-style survival sleeping bag standing upright, with a smooth tapered profile that gradually narrows toward the feet. The bag wraps naturally around itself with a slightly curved front fold, creating a snug cocoon-like shape. The hood is rounded and sculpted, rising gently at the top with a structured rim. A visible side zipper runs from the midsection up toward the hood, allowing the top flap to open slightly. The outer shell has fine horizontal quilted baffles running across the body, giving a padded segmented texture. The interior shows a dark fabric lining with a subtle sheen, and a glimpse of a silver heat-reflective thermal layer beneath. The overall design feels practical, expedition-ready, and built for harsh wilderness survival.