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SKU: atepa-cold-weather-sleep-system-bundle-450-coldmastertm-sleeping
Built for cold nights when pack space and weight still matter, this sleep bundle combines a mummy sleeping bag with a matching insulated pad to create a coordinated system for three-season use and shoulder-season conditions. The pad’s R-Value 4.4 helps block ground chill, while the bag is rated for comfort down to 42.8°F, giving you a more complete setup than relying on either piece alone. It’s a practical choice for backpackers, thru-hikers, and backcountry hunters who want a compact sleep kit that is ready to go without sorting out compatibility on their own. The trade-off is straightforward: this is a lightweight, packable system focused on efficient warmth, not a bulky cold-weather camp bed.
Complete Cold-weather
Sleep system pairs a sleeping
Pad R-value
4.4 adds ground insulation for
Sleeping Bag
Uses 450g of 700 fill
Bundle Weighs
Less than 3 lbs, supporting
Sleeping Bag
Compresses to 14 x 7.5
| Bundle Includes | 1 sleeping bag and 1 sleeping pad |
|---|---|
| Bundle Weight | Less than 3 lbs |
| Sleeping Bag Features | Contoured hood, 3D footbox, draft collar, internal pocket, YKK anti-snag zipper |
| Sleeping Bag Fit | Users up to 6'5" |
| Sleeping Bag Insulation | 450g of 700 Fill Power Coldmaster(TM) Blend (55% RDS down, 45% recycled cotton) |
| Sleeping Bag Material | GRS-certified recycled nylon |
| Sleeping Bag Model | Elements 450 Coldmaster(TM) Mummy Sleeping Bag |
| Sleeping Bag Packed Size | 14" x 7.5" |
| Sleeping Bag Temperature Rating Comfort | 42.8°F (6°C) |
| Sleeping Bag Temperature Rating Extreme | 6.8°F (-14°C) |
| Sleeping Bag Weight | 2.2 lbs |
| Sleeping Pad Features | Multi-layer reflective technology, horizontal tension system, dry-inflation pump sack, quick-release dual valve, full repair kit |
| Sleeping Pad Material | PVC-free TPU |
| Sleeping Pad Model | Ultralight Mummy Sleeping Pad |
| Sleeping Pad Packed Size | 7.9" x 3.9" |
| Sleeping Pad R Value | 4.4 |
| Sleeping Pad Thickness | 3.15" |
| Sleeping Pad Weight | 14.5 oz |
The sleeping bag is tested for comfort down to 42.8°F (6°C) and has an extreme rating of 6.8°F (-14°C). The pad is listed at R-Value 4.4 for 3-season+ use. The bundle is described as suitable for spring, fall, and early winter conditions, but exact comfort depends on the full system and the user.
The bundle includes one ATEPA Elements 450 Coldmaster(TM) Mummy Sleeping Bag and one ATEPA Ultralight Mummy Sleeping Pad with R-Value 4.4.
The bundle is listed at less than 3 lbs total: 2.2 lb for the sleeping bag and 0.9 lb for the pad.
The sleeping bag compresses to 14" x 7.5". The pad rolls to 7.9" x 3.9" and is described as smaller than a 1L water bottle.
The sleeping bag includes a contoured hood, 3D footbox, draft collar, internal pocket, and YKK anti-snag zipper. The pad includes a dry-inflation pump sack, quick-release dual valve, and a full repair kit.