Eureka Casper 15°F Performance Sleeping Bag
The Eureka Casper 15°F Performance Sleeping Bag features Rteq™ insulation, a proprietary blend of 4 unique polyester fibers, each chosen for its specific characteristics of denier, loft, weight, and thermal efficiency, providing the perfect balance of warmth, durability, and compressibility that make Eureka! bags the ideal choice for users who need a lightweight bag and minimal pack size!
- High loft, compressible Rteq insulation provides thermally efficient warmth.
- Double layer, offset multi-needle quilt construction.
- Fully adjustable contoured hood.
- Full-length draft tube, anti-snag stitchguard.
- Shell is 66D StarGaze polyester ripstop, 66D polyester taffeta.
- Lining is 75D peached polyester for softness.
- Inside stash pocket.
- Trapezoidal footbox construction.
- YKK #5. 2-way, self-repairing zipper.
- Compression stuff sack included.
- Right zip.
Rteq™ insulation is a proprietary blend of 4 unique polyester fibers, each chosen for its specific characteristics of denier, loft, weight, and thermal efficiency. This advanced blend provides the perfect balance of warmth, durability, and compressibility that make Eureka! bags the ideal choice for users who need a lightweight bag and minimal pack size!
The warm-to-touch, peached polyester lining combines the performance value of a synthetic fabric with the soft feel of cotton. The slightly fuzzy texture provides added warmth and comfort in any condition.
Trapezoidal Foot Box
The anatomically designed trapezoidal foot box allows for a comfortable night’s sleep by letting your feet rest in their natural position.
The insulation-filled draft tube runs the entire length of the zipper providing even insulation coverage and preventing warmth from escaping through the zipper.
The ergonomically positioned internal pocket is perfect for night time essentials like a watch, phone, or glasses. Hook & loop closure keeps items securely in place.
I picked this bag up and took it on a backpacking trip which turned cold. The first night I went to bed and my thermometer said 27 degrees at 10 pm. I was very toasty in the bag. The second night it was 18 degrees and I awoke to sleet hitting my tarp at 5 am. I was also quite warm and comfortable. The last night was 13 degrees at 10 pm (I'm not sure how low it went beyond that). I was warm and comfortable in the bag until about 5 am. This night I used the bag in a tent instead of under a tarp and the moisture in trapped inside from two people and a big dog dripped back on the end of my bag. I woke up and was warm, but my feet were cold. I turned on a light and looked at the bag to discover ice had formed on the bag where my feet had rubbed against the walls of the tent. I put my sweater over the icy spot and went back to sleep. My feet were warm the next morning. All three nights I slept in a t-shirt and boxers. Normally, in cold weather I sleep in my clothes which add an extra layer of insulation, but after reading the other reviews I decided to throw caution to the wind and test the bag out.
I noticed that the bag will not keep you warm unless you cinch the mummy drawstring tight and seal the air out of the bag. I can only guess that other reviewers either didn't cinch the string or fell asleep against the outside wall of a tent. Also, this bag is a bit big for my tastes as I like to hike with a tiny alpine pack. I used my bigger bag (it's about what a 'normal' backpacker would use) on this trip and it fit easily inside the pack. Overall, I think it's a great bag. I wish it didn't weight 3 pounds, but for the price I doubt one could find a cheaper bag that has this temp rating.