The Swaddelini Arms Out™ Long Sleeve Sleep Sack in Black offers comfort and freedom for babies transitioning out of traditional swaddles. Engineered with signature Hug Technology®, it gently supports and soothes little ones as they begin to roll and explore, helping calm startle reflexes and promote restful sleep. Breathable, seamless knit fabric provides a cozy yet flexible sleep surface, while long sleeves add warmth. Designed for growing infants, this arms-out wearable blanket delivers safety, comfort, and easy care, making bedtime simpler for both baby and caregiver.
Arms-out design supports natural movement as baby grows
Hug Technology® provides gentle compression to calm and soothe
Seamless knit construction for comfort and unrestricted sleep
Long sleeves add warmth and cozy coverage
Easy to integrate into bedtime routines
Comfortable for rolling, moving, and emerging mobility stages
Handcrafted quality with thoughtful design
Designed for babies approximately 18–25 lbs (8.2–11.3 kg)
Long-sleeve wearable blanket style
Seamless knit fabric for breathable comfort
Suitable for babies beginning to roll and explore
Flexible fit that accommodates movement
Available in multiple sizes to grow with your baby
Ideal transition from traditional swaddles to arms-out sleep
Breathable fabric supports airflow and comfort overnight
