long sleeve sleep sacks

Say goodbye to chilly arms and midnight diaper-change struggles. gunamuna’s long sleeve sleep sacks are crafted from ultra-soft bamboo viscose to keep your baby snug, cozy, and comfortable—all night long. 

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Light gray long-sleeve sleep sack with small cartoon character print
Light gray long-sleeve sleep sack with small cartoon character print
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TOG:

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Friends / 0.5 TOG
$49.01 $70.00
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Long sleeve 1.0 TOG sleep sack, pink floral with bear applique and zip front
Long sleeve 1.0 TOG sleep sack, pink floral with quilted padded design
Long sleeve 1.0 TOG sleep sack, pink floral with bear applique and zip front Long sleeve 1.0 TOG sleep sack, pink floral with quilted padded design

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Sorbet / 0.5 TOG
$49.01 $70.00
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Pink long-sleeve sleep sack with small dog print and front zip; baby holding plush dog
Pink long-sleeve sleep sack with small dog print and front zip; baby wearing it
Pink long-sleeve sleep sack with small dog print and front zip; baby holding plush dog Pink long-sleeve sleep sack with small dog print and front zip; baby wearing it

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Girl Dog / 0.5 TOG
$49.01 $70.00
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Pale pink bunny lovey blanket with white bird print and small plush bunny, shown on crib
Stella bunny lovey security blanket in pale pink with white bird pattern and bunny plush
Pale pink bunny lovey blanket with white bird print and small plush bunny, shown on crib Stella bunny lovey security blanket in pale pink with white bird pattern and bunny plush

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Tutu Goose / 0.5 TOG
$49.01 $70.00
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Cream long-sleeve sleep sack with scattered white geese, zip front, and arm openings
Cream long-sleeve baby sleep sack with white goose print and fold-over hand cuffs
Cream long-sleeve sleep sack with scattered white geese, zip front, and arm openings Cream long-sleeve baby sleep sack with white goose print and fold-over hand cuffs

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Goose / 0.5 TOG
$49.01 $70.00
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Pink gingham long-sleeve baby sleep sack with wide arm openings and zipper front
Pink gingham sleep sack with long sleeves and center front zipper, lying on back
Pink gingham long-sleeve baby sleep sack with wide arm openings and zipper front Pink gingham sleep sack with long sleeves and center front zipper, lying on back

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Pink Gingham / 0.5 TOG
$49.01 $70.00
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Save 30%
Gray star-print long sleeve sleep sack with covered hands, baby asleep
2.5 TOG long sleeve sleep sack in gray star print with fold-over hand cuffs
Gray star-print long sleeve sleep sack with covered hands, baby asleep 2.5 TOG long sleeve sleep sack in gray star print with fold-over hand cuffs

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Dream / 0.5 TOG
$49.01 $70.00
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Save 30%
Light blue long-sleeve baby sleep sack with dachshund print
Light blue baby sleep sack with dachshund print, long sleeves and covered body
Light blue long-sleeve baby sleep sack with dachshund print Light blue baby sleep sack with dachshund print, long sleeves and covered body

0.5 TOG | 74-78°F

Long Sleeve Sleep Sack
•Woof / 0.5 TOG
$49.01 $70.00
+ more

the ultimate sleep solution for cooler nights

When the room temperature drops, our long sleeve sleep sacks deliver exactly what sleepy babies need—extended sleeve coverage that keeps little arms cozy while maintaining the breathable comfort that makes bamboo rayon so special for sensitive skin.


Our signature long sleeve sleep sack combines the luxurious feel of silky bamboo with innovative features that make your life easier. The down alternative fill creates cozy insulation without overheating, while the roomy bottom allows for natural movement and healthy hip development. Every detail, from the smooth interior seams to the carefully positioned zipper, prioritizes your baby's comfort and your peace of mind during those chilly nights.

why choose gunamuna long sleeve sleep sacks?

  • temperature-perfect design: Down alternative fill and bamboo rayon work together to create the ideal microclimate—warm enough for cooler nurseries but breathable enough to prevent overheating and sweaty discomfort.
  • effortless nighttime changes: Our exclusive WONDERZiP® technology means diaper changes happen without fully undressing your sleepy little one—keeping those arms covered and cozy throughout.
  • safety-first construction: Rigorously tested to meet U.S. and Canada safety standards, our OEKO-TEX® certified sleep sacks are free from harmful chemicals and irritants—because safe sleep is non-negotiable.
  • gentle on sensitive skin: Ultra-smooth bamboo rayon minimizes friction and irritation while allowing skin to breathe naturally—perfect for babies with eczema or other skin sensitivities that require extra care.

frequently asked questions

If your baby tends to get cold easily, sleeps in a cooler nursery, or you're transitioning from swaddling, long sleeve sleep sacks are ideal. They're perfect for fall and winter months, air-conditioned environments, or any time you want that extra layer of warmth without the bulk of multiple clothing pieces.

Our innovative WONDERZiP® features a two-way zipper that opens from the bottom, allowing quick and easy diaper changes without removing the entire sleep sack. Your baby stays warm and cozy while you handle middle-of-the-night changes—it's a game-changer for maintaining everyone's sleep.

Yes! Long sleeve sleep sacks are actually ideal for active sleepers because they provide consistent warmth even when your little one moves around. Unlike loose blankets that can shift or bunch up, sleep sacks stay in place, ensuring safe, comfortable sleep all night long.