Sierra Designs Cloud 20 Degree DriDown Sleeping Bag – Ultralight, Zipperless, Regular

Overview

The Sierra Designs Cloud 20 Degree DriDown sleeping bag is built for ultralight backpacking and camping. Its zipperless construction trims weight and reduces snag points, making setup and packing feel simpler after a long day on the trail. Enhanced with DriDown insulation, the bag’s treated down resists moisture better than traditional down, helping loft stay strong even in damp environments.

Temperature and Comfort

With a 20°F rating, the Cloud aims to balance warmth and weight for cool nights in spring and fall. The regular cut provides enough room for comfortable layering without turning your pack into ballast. Its compressible profile means you can squeeze it into a compact corner of your pack or attach it to the outside with minimal impact on overall weight.

Design and Warmth You Can Trust

The zipperless design reduces both weight and the risk of fabric snags, so you can pitch quickly and move freely around camp. The loft from the DriDown insulation traps heat efficiently while maintaining breathability, which helps when temperatures swing after sundown. The regular size is versatile for solo trips or shared shelters, letting you tailor your sleep setup without sacrificing space for essential clothing and gear.

Key benefits at a glance

• Ultralight construction ideal for fast-paced backpacking and ultra-light itineraries.
• DriDown insulation with moisture resilience to maintain loft in damp conditions.
• Zipperless design lowers weight and minimizes snag risks during setup and packing.
• Regular size balances warmth with comfortable space for layering and movement.
• Highly packable and easy to stow in a backpack or compact shelter setup.

Real-life use scenarios

• Weekend treks through forests with cool nights and variable humidity.
• Three-season trips where every ounce counts but you still want reliable warmth.
• Spring and fall adventures requiring quick venting after a chilly evening.

Care, longevity, and materials

For longevity, store the bag uncompressed in a breathable sack and air it out after use. Spot-clean as needed with mild soap and air dry; avoid prolonged direct heat to protect the DriDown performance. Construction focuses on durable stitching and a lightweight shell designed for backpacking and quick-drying in mixed conditions.

Materials at a glance

• Insulation: DriDown treated down for moisture resilience
• Shell: Ultralight, quick-drying fabric crafted for backpacking
• Ideal use: Backcountry trips in 2–3 seasons where weight matters