When choosing the best Sea to Summit sleeping bags for your outdoor adventures, consider options like the Boab Synthetic 2-Season, Spark Ultralight Down, and the versatile Traveller Down Blanket. Each bag offers unique features, such as varying temperature ratings and insulation types to match your needs. You’ll find comfortable designs, eco-friendly materials, and lifetime warranties for peace of mind. If you want to explore more about these amazing sleeping bags and their benefits, keep going!
| Sea to Summit Boab Synthetic 2-Season Sleeping Bag | ![]() | Best for Side-Sleepers | Temperature Rating: 15°F (-9°C) | Insulation Type: Synthetic | Construction Material: Recycled polyester | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Spark Ultralight Down Sleeping Bag | ![]() | Ultralight Champion | Temperature Rating: 15°F (-9°C) | Insulation Type: Down | Construction Material: 10D nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Spark Ultralight Down Sleeping Bag | ![]() | Premium Performance | Temperature Rating: 15°F (-9°C) | Insulation Type: Down | Construction Material: 10D nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Spark Ultralight Down Sleeping Bag | ![]() | Lightweight Excellence | Temperature Rating: 15°F (-9°C) | Insulation Type: Down | Construction Material: 10D nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Reactor Insulated Sleeping Bag Liner | ![]() | Comfort Enhancer | Temperature Rating: Not specified | Insulation Type: Synthetic (Thermolite Pro) | Construction Material: Thermolite Pro | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Ascent Down Sleeping Bag | ![]() | Versatile Three-Season | Temperature Rating: Not specified | Insulation Type: Down | Construction Material: 20D recycled nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Traveller Down Sleeping Bag Blanket | ![]() | Travel-Friendly Blanket | Temperature Rating: 30°F (-1°C) | Insulation Type: Down | Construction Material: 15D nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Ascent Women’s Down Sleeping Bag | ![]() | Women’s Specific Fit | Temperature Rating: Not specified | Insulation Type: Down | Construction Material: 20D recycled nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Spark Pro Ultralight Down Sleeping Bag | ![]() | Professional Grade | Temperature Rating: 30°F (-1°C) / 15°F (-9°C) | Insulation Type: Down | Construction Material: 10D nylon | VIEW LATEST PRICE | Read Our Analysis |
| Sea to Summit Boab Synthetic 2-Season Sleeping Bag | ![]() | Eco-Friendly Choice | Temperature Rating: 15°F (-9°C) | Insulation Type: Synthetic | Construction Material: Recycled polyester | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Sea to Summit Boab Synthetic 2-Season Sleeping Bag
If you’re a side-sleeper looking for comfort during your outdoor adventures, the Sea to Summit Boab Synthetic 2-Season Sleeping Bag is an excellent choice. Its roomy, tapered rectangular design guarantees you have enough space to move while still providing warmth. The full side zipper lets you convert it into a blanket, perfect for versatility. You’ll appreciate the double zipper sliders and shoulder snap for customizable ventilation. Made with RCS-certified recycled materials, this bag is durable and moisture-repellent. With reliable YKK zippers and a draft tube, it keeps you cozy in temperatures as low as 15°F (-9°C), weighing just 4.72 lbs.
- Temperature Rating:15°F (-9°C)
- Insulation Type:Synthetic
- Construction Material:Recycled polyester
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Tapered rectangular
- Additional Feature:Blanket conversion capability
- Additional Feature:Customizable ventilation options
- Additional Feature:RCS-certified recycled materials
Sea to Summit Spark Ultralight Down Sleeping Bag
The Sea to Summit Spark Ultralight Down Sleeping Bag is the ideal choice for backpackers and bike packers seeking a lightweight yet warm option for their adventures. With a 15°F (-9°C) rating, it’s perfect for two-season use. The high-loft 850+ fill power down insulation, treated for moisture resistance, keeps you cozy while maintaining loft. Its ultralight 10D shell features PFC-free DWR for added water resistance, and the breathable liner guarantees comfort throughout the night. The contoured mummy shape and full box baffles maximize warmth, while durable YKK zippers ensure snag-free operation. Plus, it comes with a lifetime warranty for peace of mind.
- Temperature Rating:15°F (-9°C)
- Insulation Type:Down
- Construction Material:10D nylon
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Contoured mummy
- Additional Feature:High-loft down insulation
- Additional Feature:Ultralight construction
- Additional Feature:Lifetime guarantee
Sea to Summit Spark Ultralight Down Sleeping Bag
For avid backpackers and bike packers seeking an ultralight option, the Sea to Summit Spark Ultralight Down Sleeping Bag stands out with its impressive 15-degree Fahrenheit rating. Designed for two-season use, it features high-loft 850+ fill power down insulation that’s Responsible Down Standard certified. Its non-PFC Ultra-Dry treatment helps maintain loft and performance in moisture. The ultralight 10D shell comes with a PFC-free DWR for water resistance, while the breathable nylon liner guarantees comfort. With a contoured mummy shape and full box baffles maximizing warmth, you’ll enjoy reliable, snag-free zippers, plus a lifetime warranty from Sea to Summit.
- Temperature Rating:15°F (-9°C)
- Insulation Type:Down
- Construction Material:10D nylon
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Contoured mummy
- Additional Feature:Contoured mummy shape
- Additional Feature:Full box baffles
- Additional Feature:Ultra-Dry down treatment
Sea to Summit Spark Ultralight Down Sleeping Bag
Designed for adventurous souls who prioritize weight and warmth, the Sea to Summit Spark Ultralight Down Sleeping Bag shines in 2-season backpacking, bike packing, and touring. With a temperature rating of 15°F (-9°C), it keeps you cozy even in cooler conditions. The high-loft 850+ fill power down insulation is responsibly sourced and treated with Ultra-Dry to resist moisture and retain loft. Its ultralight 10D shell features PFC-free DWR for water resistance, while the breathable nylon liner guarantees comfort. Plus, the contoured mummy shape and full box baffles maximize warmth, making this sleeping bag a reliable companion for your adventures.
- Temperature Rating:15°F (-9°C)
- Insulation Type:Down
- Construction Material:10D nylon
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Contoured mummy
- Additional Feature:Snag-free YKK zippers
- Additional Feature:Breathable nylon liner
- Additional Feature:Maximum warmth retention
Sea to Summit Reactor Insulated Sleeping Bag Liner
If you’re seeking an extra layer of warmth during your outdoor adventures, the Sea to Summit Reactor Insulated Sleeping Bag Liner is an excellent choice. Made with Thermolite Pro technology, it features knitted, hollow-core fibers and infrared ceramic pigments that reflect your body heat. The mummy shape guarantees you have freedom of movement, while the drawcord footbox allows for customizable comfort. Plus, it’s compatible with the Free-Flow Zip system in select Sea to Summit sleeping bags. With HeiQ Fresh technology, it stays fresh even after extended use. And remember, it comes with a lifetime guarantee—so you’re covered!
- Temperature Rating:Not specified
- Insulation Type:Synthetic (Thermolite Pro)
- Construction Material:Thermolite Pro
- Zipper Type:Not specified
- Warranty:Lifetime
- Shape:Mummy-shaped
- Additional Feature:Thermolite Pro technology
- Additional Feature:Drawcord footbox design
- Additional Feature:HeiQ Fresh odor control
Sea to Summit Ascent Down Sleeping Bag
The Sea to Summit Ascent Down Sleeping Bag is an excellent choice for outdoor enthusiasts who need a versatile sleeping solution for three seasons. With its RDS-certified, 750+ fill power goose down, you’ll stay warm and cozy. The Free Flow Zip System lets you adjust for temperature, while the lightweight 20D recycled nylon shell protects against wind and moisture. Its relaxed mummy fit offers room for an Aeros pillow, and you can even zip couple it with a compatible women’s bag. Weighing just 2.85 pounds, it’s perfect for camping, ensuring comfort and warmth all night long.
- Temperature Rating:Not specified
- Insulation Type:Down
- Construction Material:20D recycled nylon
- Zipper Type:Not specified
- Warranty:Lifetime
- Shape:Relaxed mummy
- Additional Feature:Free Flow Zip System
- Additional Feature:Relaxed mummy fit
- Additional Feature:Zip couple compatibility
Sea to Summit Traveller Down Sleeping Bag Blanket
For those starting 2-season bike tours or hut trips, the Sea to Summit Traveller Down Sleeping Bag Blanket is an ideal companion. Weighing only 1.7 pounds and compressing to just 5.8 liters, it’s easy to pack. With a temperature rating of 30°F (-1°C), this versatile blanket features 750 fill power down insulation, ensuring warmth without the bulk. Unzip it to use as a blanket or connect two Travellers with the full-length zipper. Shoulder and foot drawcords let you adjust for ventilation or warmth. The ultralight 15D nylon shell provides durability and moisture resistance, making it perfect for any adventure.
- Temperature Rating:30°F (-1°C)
- Insulation Type:Down
- Construction Material:15D nylon
- Zipper Type:Not specified
- Warranty:Lifetime
- Shape:Rectangular
- Additional Feature:Versatile sleeping blanket
- Additional Feature:Maximum user height 6’4″
- Additional Feature:Highly compressible design
Sea to Summit Ascent Women’s Down Sleeping Bag
Designed specifically for women, the Sea to Summit Ascent Women’s Down Sleeping Bag offers an exceptional balance of comfort and warmth. With its RDS-certified 750+ fill power goose down and lightweight 20D recycled nylon shell, you’ll stay cozy even in damp conditions thanks to the Ultra-Dry Down treatment. The Free Flow Zip System allows for excellent temperature regulation, while the women’s specific fit caters to your natural side-sleeping position. The anatomical footbox enhances warmth retention, and with multiple configurations, it’s versatile for any adventure. Plus, you’ll benefit from the Sea to Summit Guarantee, ensuring durability for years to come.
- Temperature Rating:Not specified
- Insulation Type:Down
- Construction Material:20D recycled nylon
- Zipper Type:Not specified
- Warranty:Lifetime
- Shape:Mummy
- Additional Feature:Women’s specific fit
- Additional Feature:Anatomical footbox design
- Additional Feature:Multiple configurations available
Sea to Summit Spark Pro Ultralight Down Sleeping Bag
When you’re seeking a sleeping bag that excels in versatility and performance, the Sea to Summit Spark Pro Ultralight Down Sleeping Bag stands out for three-season backpackers and bike packers alike. Weighing just 2.03 pounds, it features 950+ fill power down insulation, ensuring warmth without bulk. The contoured mummy shape, combined with a Free Flow Zip System, allows for snag-free operation and ventilation when needed. Choose between 30-degree and 15-degree models for your climate. Plus, it comes with an Ultra-Sil compression sack for easy packing. With a lifetime guarantee against defects, you’re investing in quality and reliability for your adventures.
- Temperature Rating:30°F (-1°C) / 15°F (-9°C)
- Insulation Type:Down
- Construction Material:10D nylon
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Contoured mummy
- Additional Feature:Professional grade design
- Additional Feature:Hybrid box baffles
- Additional Feature:Ultra-Sil compression sack included
Sea to Summit Boab Synthetic 2-Season Sleeping Bag
The Sea to Summit Boab Synthetic 2-Season Sleeping Bag is perfect for side-sleepers who crave comfort during outdoor adventures. Its roomy, tapered rectangular design lets you move freely, while the full side zipper converts it into a cozy blanket. You’ll appreciate the double zipper sliders and shoulder snap for customizable ventilation, keeping you comfortable even in temperatures as low as 15°F (-9°C). Crafted from RCS-certified recycled materials, this bag is both eco-friendly and durable. Weighing 4.72 lbs and measuring 90.90 x 31.90 inches, it’s ideal for camping, trekking, or travel. Enjoy the outdoors without sacrificing comfort!
- Temperature Rating:15°F (-9°C)
- Insulation Type:Synthetic
- Construction Material:Recycled polyester
- Zipper Type:YKK #5
- Warranty:Lifetime
- Shape:Tapered rectangular
- Additional Feature:Draft tube protection
- Additional Feature:Ideal for side-sleepers
- Additional Feature:1% for the Planet commitment
Factors to Consider When Choosing Sea to Summit Sleeping Bags
When choosing a Sea to Summit sleeping bag, you should consider several key factors. Think about the temperature rating you’ll need, the insulation material, and how lightweight and packable the bag is. Additionally, pay attention to the design, shape, and durability to guarantee it meets your camping needs.
Temperature Rating Considerations
How do you guarantee a cozy night’s sleep in chilly conditions? Start by selecting a Sea to Summit sleeping bag with a temperature rating that matches the lowest expected temperature during your outdoor adventures. For instance, a bag rated to 15°F (-9°C) is designed to keep you warm in those frigid nights. Consider the fill power of the down insulation; higher ratings like 850+ or 950+ offer a better warmth-to-weight ratio, perfect for colder climates. Also, think about the bag’s seasonality—2-season bags are for milder temperatures, while 3-season bags can handle a wider range. Finally, look at the design features, such as baffles and draft tubes, which enhance thermal efficiency and warmth retention.
Insulation Material Options
Choosing the right insulation material plays an essential role in ensuring warmth and comfort during your outdoor adventures. Sea to Summit offers two main options: synthetic and down insulation. Synthetic materials provide excellent warmth and moisture resistance, often made from RCS-certified recycled materials, making them a sustainable choice. On the other hand, down insulation boasts a high warmth-to-weight ratio and compressibility. Look for bags with high-loft fill power ratings, like 750+ or 850+, which trap air effectively to retain heat. Additionally, non-PFC treatments such as Ultra-Dry Down enhance moisture resistance, keeping your bag lofted even in damp conditions. If you care about ethics, consider bags with Responsible Down Standard (RDS) certification for sustainably sourced down.
Weight and Packability
Weight and packability are essential factors to take into account for anyone venturing into the great outdoors. If you’re a backpacker, you’ll find sleeping bags ranging from a lightweight 1.7 pounds to a more spacious 4.7 pounds. Consider how easily a bag compresses; some can shrink to as small as 5.8 liters, making transport much simpler on long journeys. Opt for ultralight materials like 10D nylon, which keep weight down while ensuring comfort and insulation. Integrated compression sacks can further enhance packability, fitting snugly into your backpack. Remember, there’s a trade-off between weight and insulation performance; higher fill power down insulation typically offers a better warmth-to-weight ratio compared to synthetic options. Choose wisely for your adventures!
Design and Shape
When it comes to selecting Sea to Summit sleeping bags, the design and shape play a crucial role in your overall comfort. If you’re a side-sleeper, consider tapered rectangular designs that offer extra room for movement. For those who prefer a snug fit, contoured mummy shapes provide warmth and support through tailored fit and box baffle construction. Features like full side zippers allow you to convert your bag into a blanket, adding versatility for different outdoor activities. Drawcords and adjustable footboxes let you customize warmth and ventilation based on your needs. Keep in mind that your choice of design also affects packability; ultralight options are compressible for easy transport while still ensuring effective insulation for warmth.
Durability and Warranty
Durability is a key factor to contemplate in Sea to Summit sleeping bags, as it directly impacts your outdoor experience. These bags are made from high-quality materials like RDS-certified down and recycled nylon, which guarantee long-lasting performance. Many of them come with a lifetime guarantee against defects in materials or workmanship, giving you peace of mind. Advanced insulation technologies, such as Ultra-Dry Down and Thermolite Pro, enhance both durability and effectiveness in various weather conditions. Robust features like YKK zippers and reinforced seams further boost functionality. To maximize your investment, regular maintenance and proper storage can considerably extend the lifespan of your Sea to Summit sleeping bag, making it a reliable companion for your adventures.
Frequently Asked Questions
What Is the Warranty Policy for Sea to Summit Sleeping Bags?
Sea to Summit offers a limited lifetime warranty for their sleeping bags, covering defects in materials and workmanship. If you encounter issues, you can contact their customer service for assistance with warranty claims.
How Do I Properly Clean and Maintain My Sea to Summit Sleeping Bag?
To clean your sleeping bag, use a gentle detergent and cold water. Avoid fabric softeners. Air dry it flat or use a dryer on low heat with clean tennis balls to maintain loft. Regularly check for damage.
Are Sea to Summit Sleeping Bags Suitable for Extreme Winter Camping?
Yes, Sea to Summit sleeping bags can be suitable for extreme winter camping, especially their high-fill down options. Just make certain you choose the right model rated for low temperatures and layer appropriately for added warmth.
Can I Use a Sea to Summit Sleeping Bag for Backpacking Trips?
Yes, you can absolutely use a Sea to Summit sleeping bag for backpacking trips. They’re lightweight, compressible, and designed for comfort, making them perfect for your outdoor adventures. Just choose the right model for your needs.
Where Can I Purchase Sea to Summit Sleeping Bags Online?
You can purchase Sea to Summit sleeping bags online at their official website, Amazon, or outdoor retailers like REI and Backcountry. Just compare prices and check for seasonal sales to get the best deal.
Conclusion
When you’re choosing the right Sea to Summit sleeping bag, consider your specific needs, like the season, weight, and insulation type. Whether you opt for the ultralight down bags or the versatile synthetic options, you’ll find something that fits your adventure. Don’t forget to think about the fit and added features like liners for extra warmth. With the right choice, you can enjoy a cozy night’s sleep, no matter where your journey takes you. Happy camping!

