Andes Nevado 400 Mummy Sleeping Bag is a camping sleeping bag designed to keep campers warm on chilly nights with certified temperature performance. Close-fitting insulation and a compact compression sack bring comfort and convenience for multi-day trips and festivals. Is it the right choice for cold-weather weekends and pack-limited adventures?
⚡ At a Glance
- • Thermal Performance: Comfort 3°C, Limit -2°C, Extreme -19°C (EN ISO 23537-1:2016 certified)
- • Best for: Campers, festival-goers and backpackers who need warm, reliable sleep systems
- • Not ideal for: Fast-and-light trekkers seeking ultralight gear under 1 kg
Certified ratings give clear guidance for use in cool to cold conditions. Mummy shape combined with 400GSM hollow-fibre filling focuses warmth around the body while remaining reasonably compact.
Reliable Cold-Weather Protection – Thanks to EN ISO certified temperature ratings
Standardised testing under EN ISO 23537-1:2016 assigns Comfort, Limit and Extreme temperatures of 3°C, -2°C and -19°C respectively, reflecting measured thermal performance. Hollow-fibre filling traps warm air across the insulated loft.
Confident shelter for late-season camping and chilly festival nights, with clear temperature guidance for planning overnight trips.
Easy to Carry on Trips – With included compression carry bag
Compression sack reduces packed dimensions to around 35 x 25 cm, while 190T polyester shell keeps weight down. Total mass measures approximately 2 kg, balancing warmth and portability.
Fits into daypacks or larger rucksacks without dominating space, making multi-night outings and travel more manageable.
Warm, Snug Fit for Better Sleep – With mummy shape, adjustable hood and shoulder baffle
Mummy-shaped profile narrows towards the feet to reduce dead air space, while an adjustable drawstring hood and shoulder baffle limit heat loss around the head and neck. An internal pocket keeps small items accessible.
Keeps shoulders and head cosy to reduce cold spots, and stores phone or keys within easy reach overnight.
✨ The 4 Key Reasons for Andes Nevado 400 Mummy Sleeping Bag
- 400GSM hollow-fibre filling – Retains warmth while keeping overall weight around 2kg.
- Compression carry bag included – Packs down to 35 x 25cm for easier transport.
- Mummy-shaped profile with adjustable hood – Reduces cold spots and keeps heat close to the body.
- Internal storage pocket – Keeps phone and keys secure and within easy reach.
📋 Technical Details at a Glance
- Category: Mummy sleeping bag
- Temperature ratings: Comfort 3°C; Limit -2°C; Extreme -19°C (EN ISO 23537-1:2016)
- Shape: Mummy
- Shell material: 190T polyester
- Filling: 400GSM hollow-fibre
❓ Frequently Asked Questions
Q: What temperatures is the bag rated for?
A: Comfort is rated at 3°C, Limit at -2°C and Extreme at -19°C, with certification to EN ISO 23537-1:2016.
Q: Will tall sleepers fit comfortably?
A: A length of 240 cm suits taller sleepers, and an XL variant is noted to accommodate the tallest users.
Q: How compact and heavy is it for backpacking?
A: Packed down with the included compression sack it measures about 35 x 25 cm, with an overall weight of approximately 2 kg.
🏆 Our Verdict
Ideal for campers and festival-goers who need dependable warmth without unwieldy packing. Certified temperature ratings and substantial 400GSM hollow-fibre insulation deliver focused warmth and a close-fit sleeping profile. While aimed at warmth rather than ultralight use, durable materials and clear performance ratings make it a long-term, dependable choice for cooler-season outdoor trips.
