Sleeping Bags

A sleeping bag is a portable bedding system designed primarily to insulate against external temperatures and maintain the thermal equilibrium required for human sleep. Its core structure consists of an outer tear-resistant shell, a middle insulating fill layer (such as down or synthetic fiber), and an inner skin-friendly lining, which work together to provide warmth by minimizing heat convection and conduction. Key usage scenarios include outdoor adventures (e.g., camping, mountaineering, hiking) and indoor emergency overnight stays (e.g., hosting guests, disaster preparedness). The target user base encompasses professional backpackers, families on trips, seasonal hunters, and urbanites seeking emergency backup gear. Product categorization is primarily based on usage scenarios and includes: single/double sizes; temperature ratings such as extreme-cold (below -20°C) and three-season (-5°C to 10°C); shapes including rectangular (for roominess), mummy (for maximum warmth efficiency), and semi-rectangular (balancing comfort and packability); along with specialized variants like children's models and ultra-lightweight backpacking versions.