About

Learn what makes this product unique and why it’s right for you.

No zippers. No Velcro. No snaps. No wrapping. Just slide it on — and sleep.

The Grey Swaddelini is the world's first seamless, closure-free swaddle. Instead of wrapping, tucking, or fumbling with hardware at 3am, it works like a sock — slip it over your baby and the 3D-knit fabric does the rest. The patented Hug Technology® gently mimics the pressure of being held, calming the Moro startle reflex that wakes newborns during active sleep and encouraging deeper, longer rest.

  • World's first seamless 3D-knit swaddle — no zippers, no Velcro, no snaps, no wrapping technique to learn
  • Patented Hug Technology® — gentle, even pressure around the chest mimics a parent's embrace and calms the Moro startle reflex
  • Snug at chest, loose at hips — designed in compliance with AAP safe sleep guidelines; hip-healthy construction supports healthy joint development
  • Transitions to a wearable blanket — when baby starts rolling, leave arms out for full freedom of movement while keeping the cozy, calming feel
  • Made in Holland, Michigan, USA — sustainably sourced yarn, rigorously third-party safety tested
  • Award-winning design — recognized by pediatric sleep specialists and parents alike

Sizing: Small fits 6–12 lbs · Large fits 12–18 lbs

Machine wash cold, tumble dry low. For babies 0–18 lbs.

Learn what makes this product unique and why it’s right for you.

No zippers. No Velcro. No snaps. No wrapping. Just slide it on — and sleep.

The Grey Swaddelini is the world's first seamless, closure-free swaddle. Instead of wrapping, tucking, or fumbling with hardware at 3am, it works like a sock — slip it over your baby and the 3D-knit fabric does the rest. The patented Hug Technology® gently mimics the pressure of being held, calming the Moro startle reflex that wakes newborns during active sleep and encouraging deeper, longer rest.

  • World's first seamless 3D-knit swaddle — no zippers, no Velcro, no snaps, no wrapping technique to learn
  • Patented Hug Technology® — gentle, even pressure around the chest mimics a parent's embrace and calms the Moro startle reflex
  • Snug at chest, loose at hips — designed in compliance with AAP safe sleep guidelines; hip-healthy construction supports healthy joint development
  • Transitions to a wearable blanket — when baby starts rolling, leave arms out for full freedom of movement while keeping the cozy, calming feel
  • Made in Holland, Michigan, USA — sustainably sourced yarn, rigorously third-party safety tested
  • Award-winning design — recognized by pediatric sleep specialists and parents alike

Sizing: Small fits 6–12 lbs · Large fits 12–18 lbs

Machine wash cold, tumble dry low. For babies 0–18 lbs.

Grey Swaddle Sleep Sack

Regular price
$44.95
Sale price
$44.95
Regular price
Shipping calculated at checkout.
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