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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Goose-print long sleeve sleep sack with front zipper, off-white fabric
Goose-print long sleeve sleep sack with front zipper and personalization text 'Teddy'
Goose-print long sleeve sleep sack with front zipper, off-white fabric Goose-print long sleeve sleep sack with front zipper and personalization text 'Teddy'

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Goose / 2.5 TOG
$80.00
+ more
Gray star-print long sleeve sleep sack with covered hands, baby asleep
Gray long-sleeve sleep sack with tiny white dot pattern and zip front
Gray star-print long sleeve sleep sack with covered hands, baby asleep Gray long-sleeve sleep sack with tiny white dot pattern and zip front

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Dream / 2.5 TOG
$80.00
+ more
Sold out
Newborn in cream floral long-sleeve sleep sack with zip front, soft gathered neck
Cream floral long-sleeve sleep sack with front zipper, small brown/purple flowers
Newborn in cream floral long-sleeve sleep sack with zip front, soft gathered neck Cream floral long-sleeve sleep sack with front zipper, small brown/purple flowers

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Posie / 2.5 TOG
$40.00 $80.00
+ more
Sold out
Sage green long-sleeve sleep sack with front zip and footed openings
Sage green long-sleeve sleep sack with 'Henry' on chest, front zip, footed openings
Sage green long-sleeve sleep sack with front zip and footed openings Sage green long-sleeve sleep sack with 'Henry' on chest, front zip, footed openings

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Sage / 2.5 TOG
$80.00
+ more
Light blue long-sleeve sleep sack with orange dog prints, baby lying inside.
Long-sleeve sleep sack with dachshund print, personalized 'Alex', pale gray fabric
Light blue long-sleeve sleep sack with orange dog prints, baby lying inside. Long-sleeve sleep sack with dachshund print, personalized 'Alex', pale gray fabric

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Woof / 2.5 TOG
$80.00
+ more
Sold out
Long-sleeve sleep sack in moss green with giraffe print, zip front and cuffed sleeves
Long-sleeve sleep sack in moss green with allover giraffe print and zipper front
Long-sleeve sleep sack in moss green with giraffe print, zip front and cuffed sleeves Long-sleeve sleep sack in moss green with allover giraffe print and zipper front

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Giraffe Moss / 2.5 TOG
$56.00 $80.00
+ more
Long-sleeve sleep sack in light gray with bird and football print, front zipper.
Long-sleeve sleep sack with open foot area and quilted lining, bird and sports print.
Long-sleeve sleep sack in light gray with bird and football print, front zipper. Long-sleeve sleep sack with open foot area and quilted lining, bird and sports print.

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Football Goose / 2.5 TOG
$80.00
+ more
Pink long-sleeve sleep sack with all-over dog print, baby shown inside
Girls long sleeve sleep sack, pink dog print with 'Serena' on chest and front zipper.
Pink long-sleeve sleep sack with all-over dog print, baby shown inside Girls long sleeve sleep sack, pink dog print with 'Serena' on chest and front zipper.

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Girl Dog / 2.5 TOG
$80.00
+ more
Pink long-sleeve sleep sack with heart print, cuffed sleeves, 2.5 TOG
Pink long-sleeve sleep sack with heart print, 2.5 TOG
Pink long-sleeve sleep sack with heart print, cuffed sleeves, 2.5 TOG Pink long-sleeve sleep sack with heart print, 2.5 TOG

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Hearts / 2.5 TOG
$80.00
+ more
Light blue long-sleeve sleep sack with small white pattern and front zipper
Light blue sleep sack with long sleeves, zip front, and open bottom with bare feet
Light blue long-sleeve sleep sack with small white pattern and front zipper Light blue sleep sack with long sleeves, zip front, and open bottom with bare feet

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Meadow / 2.5 TOG
$80.00
+ more
Light blue long-sleeve sleep sack with moose pattern and full-length zip in crib
Light blue 2.5 TOG sleep sack with long sleeves, front zipper, small moose print
Light blue long-sleeve sleep sack with moose pattern and full-length zip in crib Light blue 2.5 TOG sleep sack with long sleeves, front zipper, small moose print

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Moose / 2.5 TOG
$80.00
+ more
Long-sleeve floral sleep sack in petal pink, with plush bunny tucked inside
Long-sleeve floral sleep sack in petal pink, 2.5 TOG, with plush toy pocket
Long-sleeve floral sleep sack in petal pink, with plush bunny tucked inside Long-sleeve floral sleep sack in petal pink, 2.5 TOG, with plush toy pocket

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Petals / 2.5 TOG
$80.00
+ more
Plaid long-sleeve sleep sack, buttoned front and foot opening, light gray grid
Plaid long-sleeve sleep sack with draped shell design and leg opening, gray grid
Plaid long-sleeve sleep sack, buttoned front and foot opening, light gray grid Plaid long-sleeve sleep sack with draped shell design and leg opening, gray grid

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Plaid / 2.5 TOG
$80.00
+ more
Long sleeve floral sleep sack, off-white with pink roses; 2.5 TOG rating
Long sleeve floral sleep sack with feet, off-white pink rose print; 2.5 TOG
Long sleeve floral sleep sack, off-white with pink roses; 2.5 TOG rating Long sleeve floral sleep sack with feet, off-white pink rose print; 2.5 TOG

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Savanna / 2.5 TOG
$80.00
+ more
Checkered long-sleeve sleep sack on a sleeping baby, with folded hand openings.
Checkered long-sleeve sleep sack with arm opening and draped leg panel, gray lining.
Checkered long-sleeve sleep sack on a sleeping baby, with folded hand openings. Checkered long-sleeve sleep sack with arm opening and draped leg panel, gray lining.

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Slumber / 2.5 TOG
$80.00
+ more
2.5 TOG long-sleeve sleep sack, gray tool-pattern with padded quilted body and elastic cuffs
2.5 TOG long-sleeve sleep sack, gray with tool icons, footed design for baby
2.5 TOG long-sleeve sleep sack, gray tool-pattern with padded quilted body and elastic cuffs 2.5 TOG long-sleeve sleep sack, gray with tool icons, footed design for baby

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Tools / 2.5 TOG
$80.00
+ more
Blush pink long-sleeve sleep sack with white swan print and full front zip
Blush pink long-sleeve sleep sack with white swan print and side zipper
Blush pink long-sleeve sleep sack with white swan print and full front zip Blush pink long-sleeve sleep sack with white swan print and side zipper

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Tutu Goose / 2.5 TOG
$80.00
+ more
Light blue long-sleeve sleep sack with colorful vehicle pattern and wrap-over wings
Light blue sleep sack with colorful vehicle print, long sleeves, and full wrap shape
Light blue long-sleeve sleep sack with colorful vehicle pattern and wrap-over wings Light blue sleep sack with colorful vehicle print, long sleeves, and full wrap shape

2.5 TOG | 58-70°F

Long Sleeve Sleep Sack
Working / 2.5 TOG
$80.00
+ 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.