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Sea to Summit Spark Down Sleeping Bag (-1°C)
$649.99 AUD
Price
Durability
Weight
Sea to Summit Spark Down Sleeping Bag (-1°C) is the best model if your number 1 goal is to save weight. Compared to other models, Sea to Summit use a higher loft rating of 850+, which keeps this bag lightweight, yet warm. They have used all the tricks in the book, from half zippers to box baffles, to technical hoods to keep the warmth in. This well-designed sleeping bag is reported by users to be conservative on temperatures and able to be packed down tight for hikers keeping their bags to a minimum weight.
Weight
Sea to Summit Spark Down Sleeping Bag (-1°C) is made from RDS-certified 850+ fillpower goose down, which keeps it warm, but also very lightweight. Sea to Summit have also minimised weight with their ultralight, breathable 10D nylon liner. All in all, this great design comes in at 493 grams.
Temperature Rating
This sleeping bag is rated at a comfort temperature of 4°C and a ISO Lower Limit temperature of -1°C. Sea to Summit have worked hard in the past few years to enhance the temperature capabilities of their sleeping bags, and users report these numbers are conservative.
Loft Rating
The loft rating for the Sea to Summit Spark Down Sleeping Bag (-1°C) is RDS-certified 850+, which higher than the ideal you’d want for walking Te Araroa. 100% of the down used in their sleeping bags and quilts is independently certified to the Responsible Down Standard (RDS).
Material
Sea to Summit Spark Down Sleeping Bag (-1°C) is made from 850+ fillpower goose down with a non-PFAS Ultra-Dry Down treatment for maximum thermal performance for the filling, ultralight, breathable 10D nylon for the lining, and a 10D shell with PFAS-free DWR to keep the hood and footbox highly water resistant for the main fabric. 100% backing its product, the Sea to Summit Guarantee is offered for the Lifetime of this product
Comfort
Sea to Summit have done a few things to make this a comfortable sleeping bag, starting with baffle construction specific for each use. A technical hood, anatomical footbox and an ergonomic mummy shape means warmth is held in, but you don’t feel squeezed in too much. The Spark is constructed with a zipper draft tube to retain warmth and a zipper plow to provide reliable, snag-free operation. Finally, the full-length zipper model can be zipped to an equivalent Women’s Spark for comfort that couples can share.
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