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🌙 Sleep smarter, not harder — the ultimate baby sleep bag for every season and every step.
The Woolino 4 Season Baby Sleep Bag combines 100% natural merino wool lining with a GOTS-certified organic cotton outer, offering breathable, temperature-regulated comfort for babies aged 6-18 months. Designed with foot openings for mobility and a bottom zipper for easy diaper changes, this durable, machine-washable sleep sack supports safe sleep and active play. Trusted since 2010, it’s the top-rated baby wearable blanket in the USA and Canada, backed by a 6-month warranty and US customer support.


















| ASIN | B01M34RUSO |
| Age Range Description | Baby |
| Best Sellers Rank | #5,424 in Baby ( See Top 100 in Baby ) #103 in Baby Wearable Blankets |
| Brand Name | Woolino |
| Closure Type | Zipper |
| Collection Name | all |
| Color | Gray |
| Customer Reviews | 4.7 out of 5 stars 806 Reviews |
| Fabric Type | 100% Merino Wool Lining / 100% Organic Cotton Outer |
| Fit Type | Loose, Regular |
| Manufacturer | Woolino |
| Material | 100% Merino Wool Lining / 100% Organic Cotton Outer |
| Occasion | Sleep |
| Part Number | FeetSS6-18moGray |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | 6-18 Months |
| Style | Child |
| Style Number | FeetSS6-18moGray |
| UPC | 855845006942 |
| Unit Count | 1 Count |
L**U
Durable, Warm, and Worth the Investment
We’ve been using this wool wearable blanket for nearly two years, and it has been fantastic. The material is soft and breathable, keeping my child perfectly warm during the winter and even on camping trips. It fits well and is flexible enough to accommodate a wide range of ages. One of the best features is that it allows my child to walk comfortably while wearing it, which was a major factor in choosing this product. After many washes in the washing machine (we hung it to dry), the blanket has held up remarkably well. There’s only one small hole, likely from a toenail, but considering how long we’ve used it, I’d say the durability is excellent. Although it is on the expensive side, we’ve definitely gotten our money’s worth, and it’s now being used by our second child. Highly recommend it for anyone looking for a long-lasting, high-quality wearable blanket.
D**S
Great quality!
Do it! This sleep sack has been a game changer! We got it in the summer this past year and it has been great for our 1 year old as he was standing and walking. I was always worried he would faceplant in the sleep sacks, so this puts my mind at easy since it has leg holes. In the warmer weather, we use normal footie PJs or throw on a pair of socks. In the fall and winter he wears fleece footie PJs and is very comfortable. I love that it has grown well with him and we look forward to using it for the rest of this year (or longer). Easy to care for, zipper is sturdy and my baby likes to chew on it, it has a great zipper cover, looks cute, easy to wash, and fits great. It's got a great amount of weight to it. He sometimes carries it around like a blanket because he loves it so much. I wish I bought one sooner and saved money on buying sleep sacks every couple of months
M**N
Great buy! Worth the price!
Baby stays warm and comfy. My only complaint is that it runs big. But, baby will wear it for a couple of years so that makes it worth the price. Just make sure to follow washing instructions to get the most out of it.
G**A
Phenomenal quality! So glad I splurged
I cannot say enough positive things about this sleep sack. I bought the size 18-36 months with feet, and my 7 month old fits the guidelines for it being safe to wear (his head does not fit through the neck hole, he’s a big boy) and the roominess is amazing. No more kicked off blankets. No more chilled baby toes. I love that it comes with a dressing guide and thermometer! What an awesome feature. I hung the thermometer on a door handle by my diaper changer and can easily see what temperature it is, flip it over, and get suggestions for what layers to put on my baby so he doesn’t get too warm or too cool underneath this sleep sack! It is lightweight, but heavy enough to feel robust and comforting. The cotton and wool blend is nothing less than luxurious. I’ve had multiples times I had to wash this sleep sack, as my little one still spits up quite regularly. It was daunting at first, but really cleaned up perfectly. I used 1 Tbsp of eucalan’s jasmine scented wool wash called “wrapture” and put it in my washing machine for a cold rinse and spin cycle on delicate and then hung to dry. It is such a perfect weight, it dries quickly without being cumbersome. I gave it a quick 10 minute fluff in the dryer and it was back to cuddly super soft and ready to go again the same day. I cannot day enough wonderful things about this sleep sack! It’s definitely a keeper!
A**D
LOVE IT
THE perfect sleep sack for my toddler. She loves it! Im thinking of ordering another one. The quality of the fabric is amazing, it washes great, and the material is just right, not too hot but cozy enough for year round use. I love it.
Z**O
High quality
I’m so glad I found this baby sleeping bag! The quality is excellent—soft, breathable fabric that keeps my baby cozy without overheating. My little one used to kick off blankets constantly, but since switching to this sleeping bag, he’s been sleeping more soundly and safely.
J**J
really nice sleep bag for a 1 year old
Wool sleep bag is warm without weight. The fact that my 1 year old granddaughter has her feet free, allows her to walk and stand in her crib with her sleep bag on. Washes well and lasts a long time
M**R
The zipper initiation might ruin your life.
This is a great product. It keeps my child warm at night,its soft, and overall great. There is one aspect however that I truley think the creators of this sleep sack have conspired together about... the zipper! I'm sure they planned it to try and ruin the life of every parent. The damn zipper! I swear every night is like wresting a crocodile to get that damn zipper initiated. There could of been an easier way in this design than to start the zipper at their chin, make it incredibly small, and if you miss the tiny little zipper insert..for the love of God its over. It takes me soooooo long to get my 1 year old in this sleep sack. He puts it on just fine but looses patience with me for how long it takes me to get the zipper initiated. Anyways great sleep sack, I wish they would of thought of how the zipper initiation might affect the life of a mother. Trying to get their one year old to sit still long enough to get that damn zipper started.
L**Z
Excelente ! Vale la pena la inversión
Es un producto de primera calidad, por lo tanto es caro pero me parece una inversión que vale la pena sobre todo en tallas de 6-12 y más. Vienen amplios por lo que les duran a los bebés y mi chiquita no pasa frío. Tengo dos por el momento y me parecen excelentes, tengo otro bebé chiquito y compraré dos mas cuando los necesite.
ガ**き
柔らかく、暖かく、涼しい
ウールとは思えないような肌触りで驚きました。 (個人的にはスーピマコットンを連想させるような柔らかさ) あまりこういったタイプの寝具を着せたことがありませんでしたが、足先が出るからか本人も嫌がらずに着用してくれました。 うちの子は足が強く布団を蹴飛ばしてしまうので、このタイプは寝冷えさせずに済んでとても助かっています。 スリーピングバッグの中に着るものを調節すれば布団も要らず、オールシーズン着用できるというところもとても好ポイントです これから長く愛用させて頂きます
A**ー
とても良いスリーパーです♡
足まですっぽりのスリーパーは珍しく、とても気に入っています☆夜中に何度も布団を蹴とばしているわが子に今では必需品です!大きめのサイズなので長く使えそうです! 柔らかくて優しい肌ざわりなので赤ちゃんのおやすみ時間に安心だと思います☆大人用のパジャマがあったら自分も着たいなと思うくらいです☆ 色もパンダ柄も優しくて可愛いです♡ オシャレなパッケージなので、プレゼントにもおすすめだと思います。
M**A
長く愛用していきます♡
寝相が悪い娘の寝冷え防止にぴったりです!股部分がつながっているため、はいでしまう心配がありません。生地はとても肌触りが良いうえに通年使えるようになっているとのことで、今後も長く使えるのが嬉しいです。睡眠時に使用するものなのでファスナーガードがついているのも安心しました!色も柄も豊富にあり、包装も綺麗でかわいいので、おしゃれなプレゼントにも最適だなと思いました。
H**I
元々布団をかけるのが嫌いな子にはどうなのかな…
入荷を心待ちにして購入しました。 一歳7ヶ月で身長80センチですが、18-36のサイズを購入。 届いたその日に着せましたが、サイズがまだ大きくダブダブしてるので着たまま歩いたりは出来ませんでした。いつも布団をかけずに寝てしまってるのでこちらの商品は魅力的でしたが、我が家の娘は寝返りをゴロゴロするので、サイズが大きいからか寝返りしにくかったようで夜泣きが増えました(^^; 使用して3日目くらいに風邪をひいたのもあって、それからは使ってませんがサイズ的にも来年再来年も使えそうなので買っといてよかったです。
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