Top 5 Lightweight Mummy Sleeping Bags for Thru-Hiking – Tested in Arctic Conditions
For serious thru-hikers and alpine adventurers, a lightweight mummy sleeping bag that performs in extreme cold isn’t a luxury—it’s a necessity. In 2025, innovations in insulation, design, and materials have produced sleeping bags that are lighter, warmer, and more compressible than ever. After extensive testing in Arctic-like conditions, here are the top 5 lightweight mummy sleeping bags that balance warmth, packability, and performance.