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Zen Sack® Winter

Nested Bean




$ 59.99
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  • Trusted by over 2 million parents

  • Safely weighted to mimic your touch

  • Uninterrupted comfort

Our winter sleep sack is Scientifically designed for self-soothing and sounder sleep. The gently weighted Zen Sack Classic calms like your embrace by providing comforting pressure only where babies are naturally held. This secure feeling eases the swaddle transition and helps babies self-soothe through sleep disruptions, leading to deeper periods of sleep that are essential for healthy development.


The gently weighted Zen Sack helps your baby sleep through every sleep phase. Designed to help babies self-soothe and fall asleep independently, the Zen Sack eases the transition from swaddle to sack, and prevents sleep regressions and disruptions: An essential for sleep training.


▪ Two-way zipper makes diaper changes a breeze
▪ Zipper covers, cuddly seams and soft tags protect your baby’s skin
▪ Can be worn backwards by tummy sleepers who can roll independently
▪ Grow-with me adjustable snaps
▪ Cozy 2.5 TOG for added warmth

Sizes from 0 to 24 months


Fabric details:

▪ Made from 100% cotton and plush poly-fiber filling. Our warmest option is perfect for cooler rooms or colder weather.

Care details:
▪ Wash in cold water on delicate cycle
▪ Tumble dry on low heat


The center weight mimics your reassuring palm and calms with only a few ounces
▪ The safe alternative to all-weighted sleepwear
▪ Applies gentle pressure that is tested for breathing safety
▪ Passes mandatory and voluntary children's product tests
▪ Tested for suffocation hazard, pulmonologist verified
▪ Hip-healthy. Does not hinder mobility


Frequently Bought

Zen Sack™ Classic
$ 49.99
Zen Sack™ Premier
$ 54.99
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Real Parent Reviews

Frequently asked questions

Zen Sack®, the only winter sleep sack you’ll ever need

Seamlessly transition from swaddling

When rolling starts, swaddling stops—and some babies miss their cozy swaddle. Prevent wakeups with the gently weighted Zen Sack: So soothing, but tummy sleeper safe.

Stop sleep regressions

Rolling, sitting up, teething: New milestones can mean sleep regressions. Add the gently weighted Zen Sack to your sleep routine to help create positive associations with bedtime.

Help baby sleep through the night

Nighttime wakeups? The gently weighted Zen Sack is so comforting, it helps babies self-soothe—so they fall back to sleep on their own.