CribsWoolino
Woolino Ultimate Baby Sleep Sack – 4 Season Merino Wool Sleeping Bag
100% Merino Wool Lining / 100% Organic Cotton Outer
★★★★★4.8· 4,092 reviews on Amazon
150+ bought this monthPrime eligibleYour order qualifies for FREE delivery.Price refreshed daily
- Rank
- #7of 27
- Savings
- −8%vs category
- Brand
- Woolino
$109
Get on Amazon
Opens Amazon in a new tab · TheNurseryLab may earn a commission
From the listing
About this item
- 100% Merino Wool Lining / 100% Organic Cotton Outer
- Imported
- #1 RATED Merino wool baby sleep sack – BEST-SELLING merino wool and organic cotton sleep sack since 2010, trusted by parents for safe sleep, comfort, and durability. Award-winning baby sleep bag (Creative Child Top Choice, Cribsie Award, Mom’s Choice Award)
- SAFER AND BETTER SLEEP - Premium natural fabrics: 100% Australian merino wool lining, GOTS certified organic cotton outer. Luxuriously soft, temperature-regulating merino wool helps prevent overheating and chills, reducing wake-ups and supporting deeper, longer sleep for babies. Best sleep sack for cold nights, warm rooms, and fluctuating nursery temperatures
- 4 SEASON SLEEP SACK (No TOG guesswork) – One universal-size wearable blanket fits 2 months to 2 years. Replaces multiple TOG sleep sacks. Perfect year-round baby sleep bag for winter, spring, summer, and fall.
- MAXIMUM VERSATILITY - Double shoulder snaps and two-way zipper for easy dressing and easy diaper changes; Seat-belt openings allow EASY TRANSFER from crib to stroller or car seat. Under-arm snaps allow this wearable blanket to grow with your baby and make it an effective swaddle transition product
- TRUSTED QUALITY - Designed by a trusted US company and backed by an industry leading product warranty for your peace of mind. Made from 100% natural materials and fully OEKO-TEX STANDARD 100 certified (23.HUS.59156)
The details
Specs at a glance
- Color
- Gray
- Style
- Transitional
- Occasion
- sleep
- Collection Name
- All
- Pattern
- Striped
- Age Range Description
- Toddler
- Style Number
- BabyBeige
- Part Number
- BabyBeige
What buyers say
Top reviews
4,092 ratings on Amazon
- Verified
- Verified
- Verified
Same maker
More from Woolino
More like this
Related picks
From the blog
Related reading
- Saturday Edit · 3 min read
Crib mattress thickness myth: three that meet AAP standards
Most parents assume thicker means safer or more comfortable. The data and guidelines point elsewhere. Three options that prioritize firmness, certifications, and fit over extra layers.
Read the post 
Saturday Edit · 3 min readSkip WiFi monitors: three dedicated units that never drop
WiFi baby monitors promise phone-checks from anywhere. Most deliver lag, dropouts, and security worries instead. Dedicated hardware keeps signal rock-solid between rooms.
Read the post