Nitestar Alpha 450 Sleeping Bag

The Vango Nitestar Alpha 450 sits in that sweet spot where proper warmth meets reasonable pack size. Its Alpha insulation - a 50/50 blend of polyester and siliconised hollow fibres - traps air both between and within the fibres, which is how it manages decent compression without sacrificing thermal performance. The mummy shape tapers naturally from shoulders to feet for efficient heat retention, while offset double-layer construction staggers the stitching between shell and lining to prevent cold spots forming along seam lines. It's ISO 23537-1:2022 certified with a comfort rating of -4°C and limit of -11°C, so you're looking at genuine three-season capability for UK camping conditions. The 68D polyester outer has Vango's Polair Hex finish - textured and durable enough for rough ground - paired with a 190T brushed polyester microfibre lining that feels soft without being delicate. At 2.25kg it's not ultralight, but that's the trade-off for synthetic insulation that keeps working when damp. What makes this bag practical is the attention to details that matter on multi-day trips. The two-way auto-lock zip runs smoothly with anti-catch piping, and there's an insulated baffle running its full length to stop heat escaping through the zipper track. The 3D hood shapes around your head with drawcord adjustment, plus there's an insulated shoulder baffle you can cinch down when temperatures drop properly. Internal pocket for your phone or headtorch, hanging loops for airing out between trips. The horizontal stitch pattern maintains even insulation distribution, and those siliconised hollow fibres resist clumping even after repeated compression cycles. It's designed to handle Duke of Edinburgh expeditions, which tells you it'll cope with the kind of treatment kit gets on youth adventures. Fits users up to 190cm tall with an internal chest width of 83cm, packing down small enough for backpacking whilst delivering reliable warmth when changeable weather rolls in. FEATURES • Polair® Hex Fabric - A strong, durable yet soft touch 68D polyester shell fabric with an embossed hex grid finish. • Polair® Fabric Lining - A super soft and comfortable 190T brushed polyester microfibre lining that's incredibly warm and soft to touch • Alpha Insulation - A lightweight 50/50 blend of polyester and siliconised hollow fibres that trap more air between and within the fibres to increase warmth retention whilst retaining compressibility. A siliconised coating reduces friction to prevent insulation clumping and increases water repellence. • Offset Construction - A double layer design that offsets the shell and lining stitching to reduce cold spots and increase warmth retention. • Mummy Shaped Sleeping Bag - Tapers from the shoulders to the foot, reducing pack size and increasing thermal efficiency • 3D Hood - Anatomically shaped to provide greater comfort and reduce heat loss. A convenient drawcord closure allows for flexible adjustment in varying temperatures. • Horizontal Stitching - Evenly spaced to hold insulation in place and ensure even distribution throughout • Insulated Shoulder Baffle - Helps retain heat within the sleeping bag. A convenient drawcord closure allows for flexible adjustment in varying temperatures. • Zip Guard with Anti-Catch Piping - Helps to prevent the zip from snagging on the lining, allowing easy opening and closing • Insulated Zip Baffle - Prevents heat from escaping along the zip, reducing cold spots within the sleeping bag. • Auto-Lock Two-Way Zip - Seals in warmth and provides adjustable ventilation. Auto-lock prevents the bag from opening during the night and can be accessed from inside the bag • Woven Zip Puller - Allows you to quickly and easily move the zip • Internal Pocket - Provides convenient storage for small items • Hanging Loops - Allows you to easily hang your bag for quick and easy drying • ISO 23537-1:2022 Certified - Extensively tested to meet industry standard temperature ratings SPECIFICATIONS • Weight : 2.25 kg • EN13537 Comfort : -4 °C • EN13537 Extreme : -31 °C • EN13537 Limit : -11 °C • Suggested Usage Max : 15 °C • Suggested Usage Min : -9 °C • External Chest Width : 85 cm • External Foot Width : 50 cm • External Length : 210 cm • Maximum User Height : 190 cm • Internal Chest Width : 83 cm • Internal Foot Width : 48 cm • Sleeping Bag Shape : Mummy • Performance : 4 Season • Fill Type : Insulite Alpha • TOG Rating : 11 • EAN : 5059474017118 • Colourway : Winery