Snugpak Sleeper Extreme Sleeping Bag is built for cold-weather camping, trekking, bushcraft, and outdoor adventures where dependable warmth and comfort are essential. Designed as one of the warmest bags in the Sleeper range, it combines Snugpak’s durable construction with high-loft Isofibre insulation to deliver reliable thermal performance in harsh conditions.
Its mummy-shaped design helps reduce heat loss whilst maintaining enough room for a comfortable night’s sleep. The soft-touch Supersoft lining improves comfort against the skin, while the anti-snag two-way zip and adjustable hood help seal in warmth during colder nights. Whether used for winter camping, expeditions, cadet camps, or emergency preparedness, the Sleeper Extreme offers excellent value for campers needing serious insulation without the premium price tag.
Supplied with a compression stuff sack, the bag packs down efficiently for transport and storage whilst remaining robust enough for repeated outdoor use.
Features:
• Warm and reliable cold-weather sleeping bag
• High-loft Isofibre synthetic insulation retains warmth effectively
• Mummy shape reduces heat loss and improves thermal efficiency
• Soft-touch Supersoft lining for improved sleeping comfort
• Adjustable insulated hood helps trap body heat
• Anti-snag two-way side zip for ventilation and easy access
• Durable outer fabric suitable for rugged outdoor use
• Includes compression stuff sack for compact packing
• Suitable for camping, bushcraft, expeditions, military use, and emergency kits
• Designed for colder UK and European conditions
Technical:
• Season: 3-4
• Zip opening: Left hand
• Shape: Mummy
• Insulation: Isofibre 100% Polyester
• Outer Fabric: Aqualight 100% Polyester
• Inner fabric: Supersoft 100% polyester
• Comfort: -7°C / 19°F
• Extreme: -12°C / 10°F
• Weight: 2100g / 74oz
• Full length: 220cm length x 80cm chest / 87 x 31"
• Packed dimensions: 300 x 260mm / 12 x 10"
• Washing Instructions: 30°C wash with a sleeping bag detergent, do not tumble dry, do not iron, do not bleach, do not dry clean
• Colour: Olive, Black
• Made in: China
Fabric Composition
Polyester 100%
Product Safety
This product is subject to specific safety warnings.
Keep away from fire - Filling material(s) and covering fabric(s) meet the requirements for resistance to cigarette and match ignition in the 1988 safety regulations. CARELESSNESS CAUSES FIRE
Complies with EN ISO 23537-1
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UK Deliveries
£4.50 Royal Mail 24 Tracked, delivery within 1-2 working days
Orders are sent via Royal Mail only
UK Return & Refund Policy
Orders can be returned within 60 days of receipt
The products must in their original packaging, with all tags and in original condition
Customers are responsible for return shipping costs, except for products that are faulty or damaged upon delivery
For faulty or damaged items, please contact Mountain warehouse Customer Service team
Return method:
Pack the items to be sent back securely in suitable protective packaging
Fill out the return slip, and make sure to include it inside the package you're returning. You can download the return slip here.
Post your item to the address below and keep the tracking receipt as proof of return.
Please retain proof of postage until it has been confirmed that your refund has been processed
Please note that items sold by Sub Zero Technology Ltd cannot be returned to Mountain Warehouse stores
Return address:
Sub Zero Technology Ltd
35 Churchill Way
Fleckney
Leicester
LE8 8UD
For more information or help, please contact Mountain Warehouse's Customer Care.
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