Vango's award-winning Nitestar sleeping bag contains Alpha insulation, combining excellent warmth properties with much-improved compressibility, it is smaller and lighter than ever before. Perfect for youth groups or your spring and summer adventures.. Warmth and Durability. The Alpha Nitestar 250 is designed to provide warmth and comfort in cool conditions, with a comfort temperature rating of 2°C. It features a double layer of insulation for added warmth and a soft, brushed polyester lining that feels comfortable against the skin. Additionally, the sleeping bag has an insulated zip baffle that helps to keep cold air out and warm air in, ensuring a cosy and comfortable night's sleep. The durability of the Alpha Nitestar 250 is also noteworthy. It features a tough, diamond ripstop polyester outer shell that resists tears and abrasions, making it well-suited for use in rough outdoor environments. The sleeping bag is also designed to be easy to use, with a two-way auto-lock zip that prev