Sierra Designs Sleeping Bag from $70 to $139, from Amazon.com

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuf... more

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuff sack won't get lost, and a Sleep E-Z Pillow (included) stows in its own pillow pocket. The ergonomic hood and draft tube retain heat and a tricot-lined foot box provides additional insulation for feet. less

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, nig... more

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, night after night, no matter the climate. Don't fret violent thunderstorms or humid conditions, either, because Climashield keeps you warm, even in the wet. An Ergonomically Shaped Foot Box, Pad Locks, and Draft Tube deliver all the function you expect from Sierra Designs. less

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuf... more

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuff sack won't get lost, and a Sleep E-Z Pillow (included) stows in its own pillow pocket. The ergonomic hood and draft tube retain heat and a tricot-lined foot box provides additional insulation for feet. less

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, nig... more

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, night after night, no matter the climate. Don't fret violent thunderstorms or humid conditions, either, because Climashield keeps you warm, even in the wet. An Ergonomically Shaped Foot Box, Pad Locks, and Draft Tube deliver all the function you expect from Sierra Designs. less

Heat Sync fill is a synthetic insulation that is warm, lightweight and compressible Free Accessory: Sleep E-Z Pillow included, Pillow pocket holds pillow in place in the hood Ergonomic Hood is warm... more

Heat Sync fill is a synthetic insulation that is warm, lightweight and compressible Free Accessory: Sleep E-Z Pillow included, Pillow pocket holds pillow in place in the hood Ergonomic Hood is warm and comfortable, and draft tube along zipper insulates against cold spots, Tricot-lined foot box keeps feet warm Mesh storage bag is attached so it can't get lost Snag-Free Zipper Tracks, Removable Pad Locks, External Zipper Pocket holds small items less

Engineered Comfort Sleeping Bag. Extra Wide Silhouette; Pillow; Pad Locks; Draft Tube; Snag Free Zipper Tracks; Glow-in-the Dark Zipper Pulls; Contour Shingle Construction.Tr­ail Weight: 2 lbs 0 ozI... more

Engineered Comfort Sleeping Bag. Extra Wide Silhouette; Pillow; Pad Locks; Draft Tube; Snag Free Zipper Tracks; Glow-in-the Dark Zipper Pulls; Contour Shingle Construction.Tr­ail Weight: 2 lbs 0 ozInside Length: 78"Zipper Side: LeftFill Weight: 11 ozStuff Size: 8" x 18"Shell Material: 40D Poly/Nylon Ripstop, Mixed with 40D Nylon DobbyLiner Material: 50D Poly TaffetaManufact­urer: Sierra Designs. Manufacturer#: 584105RL. Approximate Shipping Weight (lbs): 3.45. less

Sierra Designs doesnt just shrink an adult version of their bags for the kids.Rather, they take design features as needed and adapt em to sleeping bags for young adventurers.Sie­rra Designs attaches... more

Sierra Designs doesnt just shrink an adult version of their bags for the kids.Rather, they take design features as needed and adapt em to sleeping bags for young adventurers.Sie­rra Designs attaches the stuff sack for the ... less

Boys will appreciate Sierra Design's cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An a... more

Boys will appreciate Sierra Design's cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuff sack won't get lost, and a Sleep E-Z Pillow (included) stows in its own pillow pocket. The ergonomic hood and draft tube retain heat and a tricot-lined foot box provides additional insulation for feet. No sweat on losing your stuff sack with the Attached Storage Bag on the Big Dog. less

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, nig... more

You'll love the 45-degree Yachiyo for everything from the unexpected crash on a friend's couch to the three-week road trip out of the back of the Subaru. Climashield XP rewards you with warmth, night after night, no matter the climate. Don't fret violent thunderstorms or humid conditions, either, because Climashield keeps you warm, even in the wet. An Ergonomically Shaped Foot Box, Pad Locks, and Draft Tube deliver all the function you expect from Sierra Designs. less