A Safer Sleep, Every Night: No loose blankets, no worries, just a snug and cozy baby.
TOG 0.5 Keeps Them at the Perfect Temperature: Whether it's summer or winter in the nursery.
Two-Way Zipper for Midnight Diaper Changes: Without fully waking them.
A Trusted Everyday Essential
Chosen by parents for its simplicity, and quality
A Few Things to Know
A Few Things to Know
A few helpful notes on how it works.
A few helpful notes on how it works.
A sleep sack is a wearable blanket that zips around your baby, keeping them warm without any loose fabric in the sleep space. The AAP recommends against loose blankets, pillows, and soft bedding in the crib for the first year because they present a suffocation risk. A sleep sack solves the warmth problem completely — your baby stays covered and cozy all night without anything that can shift, bunch, or end up over their face.
A sleep sack is a wearable blanket that zips around your baby, keeping them warm without any loose fabric in the sleep space. The AAP recommends against loose blankets, pillows, and soft bedding in the crib for the first year because they present a suffocation risk. A sleep sack solves the warmth problem completely — your baby stays covered and cozy all night without anything that can shift, bunch, or end up over their face.
TOG is a measure of thermal resistance — basically how warm a blanket or sleep sack keeps your baby. A TOG of 0.5 is a lightweight rating, designed for warmer nurseries or year-round use in a climate-controlled room. Each sleep sack includes a temperature chart to help you figure out what your baby should wear underneath based on your nursery temperature, so you are not guessing whether they are too hot or too cold overnight.
TOG is a measure of thermal resistance — basically how warm a blanket or sleep sack keeps your baby. A TOG of 0.5 is a lightweight rating, designed for warmer nurseries or year-round use in a climate-controlled room. Each sleep sack includes a temperature chart to help you figure out what your baby should wear underneath based on your nursery temperature, so you are not guessing whether they are too hot or too cold overnight.
The Sleep Sack is made from the same 70% bamboo rayon and 30% organic cotton blend used in the Butterfly Swaddle, with no filling. Bamboo rayon is naturally temperature-regulating and moisture-wicking, which makes it a smart choice for sleep — it keeps babies from overheating in warm rooms while still feeling soft and cozy. The organic cotton adds durability and breathability without any synthetic feel.
The Sleep Sack is made from the same 70% bamboo rayon and 30% organic cotton blend used in the Butterfly Swaddle, with no filling. Bamboo rayon is naturally temperature-regulating and moisture-wicking, which makes it a smart choice for sleep — it keeps babies from overheating in warm rooms while still feeling soft and cozy. The organic cotton adds durability and breathability without any synthetic feel.
It is designed for infants aged 2 to 12 months weighing over 10 pounds, and comes in one size that adjusts as your baby grows. To wash, turn it inside out, machine wash cold on a gentle cycle, and tumble dry on low or line dry. Washing it alone or with similar fabrics helps protect the bamboo blend and keeps it feeling its best.
It is designed for infants aged 2 to 12 months weighing over 10 pounds, and comes in one size that adjusts as your baby grows. To wash, turn it inside out, machine wash cold on a gentle cycle, and tumble dry on low or line dry. Washing it alone or with similar fabrics helps protect the bamboo blend and keeps it feeling its best.
