Sleeping bags are among the heaviest items in your pack, so selecting an ultralight model could save ounces as quickly as they add up. Look for models made of high-quality materials with durable seams that provide thermal efficiency designs.
Feathered Friends and Western Mountaineering offer an assortment of ultralight down bags, while synthetic alternatives, like the Marmot Trestles Elite Eco 20 are also readily available.
Quilts
Quilts, comforters and duvets offer alternative forms of sleeping insulation. Crafted with various fabrics, they may weigh more than bags in our review but still keep you warm during cold nights.
Quilts are an ideal option for backpackers looking to save space in their packs, since they don’t enclose sleepers completely but instead attach to an insulated sleeping pad to create an envelope of warmth – saving ounces as bottom insulation doesn’t compress as easily and negates its insulating ability.
Quilt batting, which lies between the layers of fabric, plays an essential role in maintaining heat retention. Cotton-only batting works best in warmer environments while polyester and wool blend batting provide more warmth for their respective weight. Some quilts, like our review of Feathered Friends Flicker 40 UL quilt, can even double up as fully enclosed hoodless mummy bags with full zippers, transformable foot boxes, and dual drawcords at the head to help regulate heat retention.
Mummy Bags
Mummy-shaped sleeping bags provide the optimal combination of warmth and weight. Wide at the shoulders, these taper down to narrow foot ends to minimize air volume needed to warm them while many come equipped with tightenable hoods for even further heat conservation.
Ultralight mummy bags enhance this design even further with lighter shell materials and higher-fill-power down, as well as half-length zippers that reach only to your knee or calf – some even forgoing the hood and zipper altogether!
Mummy bags may feel confining for those who enjoy shifting around while sleeping, making movement during sleep harder to manage. Rectangular sleeping bags provide extra wiggle room and may be preferable for warmer environments or car camping trips.
Half-Zip Bags
These AISHN bags are great for anyone who prefers standing bags over zip closures, yet are leakproof when filled and sealed tight – however, in my tests water leaked from corners on all but one bag when fully filled and sealed tight; also their plastic bar that glides across seal to close can vary in quality; additional features include handy measurement markings. You can buy individual or set AISHN bags online.
Hooded Bags
Hooded sleeping bags provide the ideal solution for car camping, backpacking and family leisure activities alike, allowing you to comfortably poke out your arms for reading or walking around without leaving the warmth of your bed. This Sportneer sleeping bag features warm cotton filling to keep you toasty warm while its waterproof shell protects against moisture and dust accumulation. In addition, its ethically sourced duck and goose down meets RDS/TDS standards to monitor its production from birds that provide this insulating material.
Multiple factors determine how cold you feel while camping, such as the temperature rating of your sleeping bag and pad and clothing you wear while sleeping. Other variables to consider are humidity and wind speeds as well as how often you move during the night and metabolism rates. You can further enhance your comfort by adding an inner sleeping bag liner with extra bedding such as fleece-lined pillow pockets. Some bags also offer convenient stash pockets to store small items securely.