Down and synthetic bags, pads, and pillows - 0°F to 50°F.
Shop Sea to Summit Spark, Trek, Boab, and Hamelin sleeping bags alongside mats and pillows. Match fill and temp rating to your coldest planned night.
Sort
Altitude Women's Down Sleeping Bag (25°F & 15°F)
From $399.00
Traverse Synthetic Sleeping Bag (25°F & 15°F)
From $219.00
Trailhead Synthetic Sleeping Bag (30°F & 20°F)
From $169.00
Traveller Sleeping Bag & Blanket (50°F & 30°F)
From $219.00
What to look for
Sleeping Bag Temperature Ratings
Most three-season campers are covered by a bag rated around 30°F. If you camp in shoulder seasons, sleep cold, or head above treeline, look at 15°F or 0°F. Warm-weather trips can use 45°F bags when nights stay mild.
Down vs. Synthetic
Down (Spark, Trek, Ascent) packs smaller and weighs less for the warmth. Synthetic (Boab, Hamelin) stays more useful when you expect damp camps and need easier care. Women's models use a shorter, narrower cut with extra insulation where it helps.
Current Sea to Summit bags
Spark and Spark Women's cover ultralight down from 45°F to 0°F. Trek and Trek Women's are versatile down bags for mixed trips. Boab and Hamelin (including Hamelin Women's) are synthetic options for wetter camps and value-minded kits. Shipping cost and timing show at checkout.
Lightweight Backpacking: Reduce Pack Weight Without Sacrificing Comfort
Packing light is a delicate balance between needs and wants. Sure, we all want to bring all the creature comforts of home with us when we go backpacking. But when you have to carry everything on your back, you quickly realize that less is more.
Top 10 Breathtaking Backpacking Destinations Across America
Are you ready for an unforgettable adventure? Check out our blog for the top 10 breathtaking backpacking destinations in America. From majestic forests to secret meadows, you'll be sure to find something that will take your breath away.
Staying Warm While Winter Camping
Bone-chilling cold does not have to end the trip. Sleep system tips, layering, and gear choices that keep winter camping cozy.