How to Choose Sleeping Bags for Camping
Sea to Summit Amplitude Down 5F Sleeping Bag - Double
This product is not available.
Snag the perfect couples campsite for a few days? This Sea to Summit Amplitude Down 5F double sleeping bag brings spaciousness, warmth and versatile ventilation you and your other half will love.
Shop similar productsKey Details
Fill
750-fill-power duck down
Weight
3 lbs. 15 oz.
Compressed Volume
14 liters
Temperature Rating (F)
5 degrees (F)
- Each side of the Amplitude has a full-length side zipper; a third zipper can be found in the foot box, allowing the top section to be removed and used as a comforter
- Shaped hood and zipper draft tubes keep cold out and warmth in
- 750-fill-power duck down provides cozy warmth
- Vertical baffles over the chest prevent down shifting as you roll over in your sleep
- Includes lightweight Ultra-Sil™ compression bag for easy storage and transport
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Sea to Summit Camping Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Camping |
|---|---|
| Tested Lower Limit | 5 degrees (F) - EN |
| Tested Comfort | 21 degrees (F) - EN |
| Temperature Rating (F) | 5 degrees (F) |
| Temperature Rating (C) | -15 degrees (C) |
| Weight | 3 lbs. 15 oz. |
| Shell | Nylon |
| Zipper Location | Left/Right |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 750-fill-power duck down |
| Fill Weight | 2 lbs. 3.2 oz. |
| Lining | 20-denier nylon |
| Sleeping Bag Shape | Rectangular |
| Fits Up To (in.) | 72 inches |
| Shoulder Girth (in.) | 128 inches |
| Hip Girth (in.) | 126 inches |
| Stuff Sack Size | 9 x 20 inches |
| Stuff Sack Volume | 20 liters |
| Compressed Volume | 14 liters |
| Gender | Unisex |
