The award-winning Nitestar Alpha is our best-selling sleeping bag range, packing all the best features for a comfortable night’s sleep. With an amazing warmth-to-weight ratio and brilliant compressibility, the Nitestar Alpha is the perfect sleeping bag for every adventure. It is also part of the Duke of Edinburgh’s Award Recommended Kit, making it ideal for your award expedition.
Key Features
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Polair Hex Fabric
A strong, durable yet soft-touch 68D polyester shell fabric with an embossed hex grid finish. -
Polair Fabric Lining
Super soft and comfortable 190T brushed polyester microfibre lining that’s incredibly warm and soft to touch. -
Alpha Insulation
Lightweight 50/50 blend of polyester and siliconized hollow fibres that trap more air between and within the fibres to increase warmth retention while retaining compressibility. A siliconized coating reduces friction to prevent insulation clumping and increases water repellence. -
Offset Construction
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. Features a convenient drawcord closure for flexible adjustment in varying temperatures. -
Horizontal Stitching
Evenly spaced to hold insulation in place and ensure even distribution throughout. -
Insulated Shoulder Baffle
Retains heat within the sleeping bag. Includes a drawcord closure for flexible adjustment in varying temperatures. -
Zip Guard with Anti-Catch Piping
Prevents the zip from snagging on the lining, allowing for 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. The auto-lock feature prevents the bag from opening during the night and can be accessed from inside the bag. -
Woven Zip Puller
Allows quick and easy movement of the zip. -
Internal Pocket
Convenient storage for small items. -
Hanging Loops
Enables easy hanging for quick and efficient drying. -
ISO 23537-1:2022 Certified
Extensively tested to meet industry-standard temperature ratings.
The Nitestar Alpha 250 Sleeping Bag is your reliable companion for a warm, comfortable, and adventure-ready sleep.
| Season | 3 Season |
| Â Weight | 1.6kg |
| Shape | Mummy |
| Zip Side | Left |
| Suggested Usage Min | -2°C |
| Comfort | 2°C |
| Suggested Usage Max | 20°C |
| Int Length | 205cm |
| Int Chest Width | 83cm |
| Int Foot Width | 48cm |
| Ext Chest Width | 85cm |
| Max User Height | 190cm |
| Fill Type | Insulite Alpha |
| Limit | -4°C |
| Extreme | -21°C |
| Tog | 10.0 |
| DofE | Yes |









