TerraLite – Ultralight Sleeping Bag for Side Sleepers

The TerraLite is an ultralight sleeping bag for side sleepers who need space to move without sacrificing warmth or weight. At just 1 lb 13 oz, it delivers premium performance for backpackers, overlanders, and comfort-focused campers.

This bag features a wide-cut design from shoulders to footbox. It gives side sleepers and restless movers room to shift without compressing insulation or feeling restricted. The 850+ fill power goose down lofts freely inside fully baffled construction, offering exceptional warmth-to-weight efficiency.

A breathable 12-denier ripstop nylon shell balances durability and airflow. It keeps moisture out while allowing internal humidity to escape. An insulated draft tube seals in warmth, helping you sleep through chilly nights in the backcountry.

Dual full-length #5 YKK zippers add versatile function. Open the bag from either side for ventilation or convert it into a flat comforter using the secondary zipper—perfect for warmer nights or quilt-style sleeping.

The TerraLite is a go-to choice for long-distance hikers, fastpackers, and weekend warriors who prioritize comfort, packability, and performance. It works well in three-season conditions and pairs easily with lightweight pads or bivy systems.

Use it in alpine zones, desert canyons, or forest camps. Wherever your trail leads, the TerraLite ensures you rest well and recover fully.

Proudly made in the USA, the TerraLite is one of Western Mountaineering’s best-selling bags for a reason. It’s light, warm, roomy, and ready to go wherever you do.

Features

Explanation

Filled with 850+ Fill Power ethically-sourced premium goose down Continuous baffles allow you to shift down for more insulation in colder weather Full-length #5 YKK zipper provides a smooth, easy unzipping experience while saving weight Insulated Draft Tube blocks cold air and keeps the torso better insulated Breathable 12 denier ripstop nylon outer shell makes bag ultralight yet durable Dual zipper design allows sleeping bag to open completely for greater temperature regulation Comes with ultralight stuff sack and breathable mesh storage bag 1 lb. 13 oz. Total Weight

Specifications

• US
• Metric

Shape	Semi Rec
Temp Rating	25°F
Fill	850+ Power Goose Down
Color	Navy Blue/Black
Country of Origin	USA
Fabric	12D ripstop nylon
Loft	5" in
Inside Girth shdr/hip/foot	5'6" 65"/68"/41" 6'0" 65"/68"/42" 6'6" 65"/68"/42" 7'0" 65"/68"/42"
Fill Weight	5'6" 16 oz 6'0" 18 oz 6'6" 19 oz 7'0" 21.5 oz
Total Weight	5'6" 1 lb 11 oz 6'0" 1 lb 13 oz 6'6" 1 lb 15 oz 7'0" 2 lb 2 oz
Stuff Size	5'6" 7"x13" XS 6'0" 7"x13" XS 6'6" 7"x13" XS 7'0" 7"x13" XS

Shape	Semi Rec
Temp Rating	-4°C
Fill	850+ Power Goose Down
Color	Navy Blue/Black
Country of Origin	USA
Fabric	12D ripstop nylon
Loft	13 cm
Inside Girth shdr/hip/foot	165cm 163/170/104 cm 180cm 165/173/107 cm 200cm 165/173/107 cm 215cm 165/173/107 cm
Fill Weight	165cm 455 g 180cm 510 g 200cm 540 g 215cm 590 g
Total Weight	165cm 765 g 180cm 820 g 200cm 880 g 215cm 960 g
Stuff Size	165cm 18x33 cm XS 180cm 18x33 cm XS 200cm 18x33 cm XS 215cm 18x33 cm XS