Therm-a-Rest Vesper 20F/-6C Down Quilt vs Paria Outdoor Products Paria Outdoors Thermodown 15 Quilt

Editorial Team
Last modified at May 28, 2026
When it comes to backpacking quilts, the Therm-a-Rest Vesper 20F/-6C Down Quilt and the Paria Outdoors Thermodown 15 Quilt are two top contenders. Both quilts are designed to provide warmth and comfort while being lightweight and packable, making them ideal for long-distance backpacking trips. However, they have distinct differences that may make one more suitable for your needs than the other.

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Therm-a-Rest Vesper 20F/-6C Down QuiltParia Outdoor Products Paria Outdoors Thermodown 15 Quilt
Therm-a-Rest Vesper 20F/-6C Down QuiltParia Outdoors Thermodown 15 Quilt
Weight

Regular: 19 oz Long: 21 oz

Regular: 33 oz
Long: 35 oz

Fill Power

900

800

Dimensions

Regular: 79 × 49 × 43 × 40.5 in Long: 83 × 52 × 46 × 43.5 in

Regular: 78 × 58 × 42 in
Long: 84 × 58 × 42 in

Fill Type

PFAS-Free Hydrophobic Goose Down, RDS

RDS-certified duck down

Temperature Rating

20°F

15°F

Warranty

Limited lifetime warranty

Limited lifetime warranty

Baffle Construction

Box Baffled

Split baffle pattern

Shell Fabric

10D Nylon Ripstop

20D ripstop nylon with PFC-free DWR treatment

Pad Attachment System

SynergyLink™ Connectors

Sleeping pad strap system

Hood

No hood

No hood

Size

Regular: 72 in Long: 78 in

Regular: Up to 5'10"
Long: 5'11" and Taller

Fabric Denier

10D

20D

Baffle Design

Perimeter Side Baffles

Split baffle

Comfort

Therm-a-Rest Vesper 20F/-6C Down Quilt

4.1/ 5.0

Paria Outdoors Thermodown 15 Quilt

3.8/ 5.0

Comfort is crucial for a good night's sleep in the backcountry. A comfortable quilt can make the difference between waking up refreshed or exhausted. The Therm-a-Rest Vesper excels in comfort with a rating of 4.1/5, praised for its soft fabric and ability to stay warm and comfortable throughout the night. Users appreciate its enclosed insulated foot box and the ability to minimize cold spots. The Paria Outdoors Thermodown, while still comfortable with a rating of 3.8/5, has some complaints about drafts and the zipper rubbing against the skin. The Vesper's higher comfort rating and positive feedback on its fabric and warmth make it the winner in this category.

Warmth

Therm-a-Rest Vesper 20F/-6C Down Quilt

3.8/ 5.0

Paria Outdoors Thermodown 15 Quilt

4.6/ 5.0

Warmth is a critical factor for backpacking quilts, especially in colder conditions. The Paria Outdoors Thermodown 15 Quilt shines in this category with a rating of 4.6/5, praised for its ability to keep users warm even in temperatures down to 15°F. Users report staying warm and comfortable, with features like a cinch system to eliminate drafts. The Therm-a-Rest Vesper, with a warmth rating of 3.8/5, has mixed reviews about its temperature rating, with some users finding it less warm than advertised. The Thermodown's higher warmth rating and positive user feedback make it the clear winner in this category.

Durability

Therm-a-Rest Vesper 20F/-6C Down Quilt

4.8/ 5.0

Paria Outdoors Thermodown 15 Quilt

4.6/ 5.0

Durability ensures your quilt lasts through many adventures. The Therm-a-Rest Vesper leads with a durability rating of 4.8/5, thanks to its lightweight 10 denier ripstop nylon and durable water repellent coating. Users report it remains in excellent condition even after multiple seasons of use. The Paria Outdoors Thermodown, with a durability rating of 4.6/5, also receives praise for its 20d ripstop nylon and overall construction. However, the Vesper's slightly higher rating and consistent positive feedback on its durability make it the winner in this category.

Ease Of Use

Therm-a-Rest Vesper 20F/-6C Down Quilt

4.3/ 5.0

Paria Outdoors Thermodown 15 Quilt

4.8/ 5.0

Ease of use can greatly enhance your camping experience. The Paria Outdoors Thermodown excels in this category with a rating of 4.8/5, praised for its easy-to-use snaps, straps, and drawstring system. Users find it simple to adjust and manipulate, making it very user-friendly. The Therm-a-Rest Vesper, with an ease of use rating of 4.3/5, also has positive feedback on its Synergy link connectors and snap system. However, the Thermodown's higher rating and consistent praise for its ease of use make it the winner in this category.

Versatility

Therm-a-Rest Vesper 20F/-6C Down Quilt

3.9/ 5.0

Paria Outdoors Thermodown 15 Quilt

4.9/ 5.0

Versatility allows a quilt to adapt to various conditions and preferences. The Paria Outdoors Thermodown stands out with a versatility rating of 4.9/5, praised for its ability to be used as a blanket or a traditional sleeping bag. Users appreciate its adjustable features and the ability to regulate temperature easily. The Therm-a-Rest Vesper, with a versatility rating of 3.9/5, is also noted for its adaptability but lacks the same level of flexibility. The Thermodown's higher rating and positive feedback on its versatility make it the clear winner in this category.

Packability

Therm-a-Rest Vesper 20F/-6C Down Quilt

4.8/ 5.0

Paria Outdoors Thermodown 15 Quilt

4.7/ 5.0

Packability is essential for backpackers who need to save space and weight. Both quilts perform well in this category, with the Therm-a-Rest Vesper and the Paria Outdoors Thermodown receiving high praise for their ability to pack down to small sizes. The Vesper is noted for compressing down to the size of a water bottle, while the Thermodown is praised for its light and compact design. Given the close ratings and positive feedback for both, this category is a tie.

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Conclusion & Final Verdict:

After comparing the Therm-a-Rest Vesper 20F/-6C Down Quilt and the Paria Outdoors Thermodown 15 Quilt, it's clear that both have their strengths. The Vesper excels in comfort, durability, and packability, making it a great choice for those who prioritize these features. On the other hand, the Thermodown stands out in warmth, ease of use, and versatility, making it ideal for those who need a quilt that can adapt to various conditions and is easy to use.

Final Verdict: If you need a quilt that offers superior comfort and durability, go with the Therm-a-Rest Vesper. If you prefer a quilt that provides better warmth and versatility, the Paria Outdoors Thermodown is the better choice.

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