Ultralight, Compact, and Easy to Pack

This down sleeping bag also features ultralight 10D shell fabric and a compact design that packs down to an impressively small size, leaving more room in your pack for other essentials. Whether you’re embarking on a multi-day trek through alpine terrain or need a lightweight sleep system for your next bikepacking adventure, the Women’s Spark delivers comfort without compromise.

Built for Versatility in All Conditions

Another standout benefit is the versatility of the Sea to Summit Spark range. From mild summer nights to shoulder-season chill, the Women’s Spark Sleeping Bag provides reliable warmth and can easily be paired with a sleeping bag liner for even colder conditions. The high-quality down is treated to resist moisture, helping maintain loft and performance in damp environments — an essential feature for unpredictable outdoor conditions.

Your Perfect Trail Companion

If you’re looking for a Spark Sleeping Bag that blends female-specific design, technical performance, and minimal weight, the Women’s Spark Down Sleeping Bag is your perfect trail companion. Ultralight, warm, and built to last — it’s ready for any adventure you are.

The Women’s Spark Down Sleeping Bag is more than just a piece of gear — it’s a reliable partner for every adventure. With its female-specific fit, premium down insulation, and ultralight design, it delivers the perfect balance of warmth, comfort, and packability. Whether you’re chasing alpine sunrises, tackling multi-day treks, or bikepacking into the unknown, this Sea to Summit Spark sleeping bag is built to perform in all conditions.

Why Shop at PAST Outdoors?

When you choose PAST Outdoors, you’re not just buying a sleeping bag — you’re investing in trusted advice, quality-tested products, and a community that’s as passionate about the outdoors as you are. Your next great adventure deserves the best gear, and the Sea to Summit Women’s Spark is ready to make every night under the stars unforgettable.