A harder working sleep pad.
Built for Distance. Designed for Comfort.
More Function. Less Weight. Comfort where it counts.
Made in USA | Patents Pending
Vision.
In 2025, MaryPoppinsUL™ set out to create the ultimate sleep system for long-distance hikers—ultralight, compact, and versatile, without compromising comfort. The result is a patent-pending, two-piece foam system engineered for performance both day and night.
Crafted with high R-value, high-durability foam from responsibly sourced, U.S. made materials.
Core Pad: Precision-molded foam that fits seamlessly in frameless packs; structured for pack support.
Flex Pad: Foldable, trail-ready stretch pad attaches to Core Pad to create full-length sleep system.
Comfort Pad: Modular underlay for targeted midsection support; doubles as sit pad or cook stove windscreen.
Try out a new idea. Take it on-trail.
Technical Specs: Combined Weight ~9.3oz (Core Pad 6.4oz | Flex Pad 1.9oz | Comfort Pad 1.0oz); Packed Volume ~4L; Connected Length 76”; Core Pad: 38” x 20.5” x 3/4”; Flex Pad: 39” x 19” x 1/8”; Comfort Pad 11.3” x 9.3” x 1/3” (may ship slightly larger and can be trimmed to preferred size/weight)
Performance Gains: 30% less weight; 50% less volume; 40% more peak & valley air-trap variation. Compared to traditional foam pads.
Optimal Size for frameless packs: When folded, two panels wide measure 9” vs. 10” on traditional pads. The narrower profile was designed to fit perfectly in frameless packs.
Our Story: Built for thru-hikers, by thru-hikers. MaryPoppinsUL™ was founded by a long-distance backpacker determined to create gear that works harder—without weighing you down. Learn more: MaryPoppinsUL.com
Care Instructions: Rinse with clean water after extended use, air-dry; Store folded or loosely rolled; Keep away from open flame & prolonged UV exposure.