Sleeveless Organic Cotton Rib Knit Sleeper Bag TOG 1.5 Natural (un-dyed) Sleep Sack Baby & Toddler CastleWare Baby 902-00-S_2020

Sleeveless Organic Cotton Rib Knit Sleeper Bag TOG 1.5

Regular price $52.00 Sale

All CastleWare Baby Sleeper Bags run true to size with room for growth so there is no need to size up.
Sleeper Bag Length: top center of neck to bottom of bag

Size: Small 3-6 months Height: 23-26” Weight: 11-18 Lbs. Length: 26”
Size: Medium 6-12 months Height: 27-30” Weight: 18-24 Lbs. Length: 29”
Size: Large 12-18 months Height: 30-33” Weight: 24-28 Lbs. Length: 32”
Size: XL 18-24 months Height: 33-35” Weight: 28-32 Lbs. Length: 35”
Size: 3T Height: 36-41” Weight: 30-39 Lbs. Length: 38”
Size: 4 Height: 42-47” Weight: 36-45 Lbs. Length: 42”

As comfortable as your favorite tee shirt. Perfect for warmer weather when used alone or layer underneath with a footie or pajama set when the temps start to drop. Provides baby with a safe alternative to blankets that they cannot kick off. Signals baby that it is time to sleep.

Trusted: Made with GOTS certified organic cotton in the USA and is not treated with any chemical finishes. 

Premium Fabric: Mom tested and approved for softness, durability and breathability. Made in the USA Rib Knit with plenty of stretch across the width. Preshrunk in hot water only, prior to cutting and sewing.

Sustainable: Fabric is dyed with low impact, fiber-reactive dyes. Cleaner for the environment and baby. Natural is dye free. 

Safe: 100% cotton fabric allows the body to breathe. Baby won’t overheat. Reduces the likelihood of rashes and eczema outbreaks. 

Practical: This sleeper comes with a one-way reversed zipper to guarantee that your child cannot unzip it accidentally. By opening from the bottom to the top, it facilitates convenient and hassle-free access when it's time to change your baby's diaper.

TOG rating 1.5 (66-80 F)

Preshrunk Fabric: For best results, turn garment inside-out, machine wash warm, tumble or line dry. Do not use fabric softeners or dryer sheets. Your child's height is the most important measurement when deciding which size to buy. If your child's height is at the top end of the size range for their age, choose the next size up. 

Baby in video is wearing a size small (3-6 months) is 4 months old, 23" long and weighs 14 lbs. 

Baby Rib Knit A light/mid weight fabric. Soft with plenty of stretch across the width. Our most popular summer weight fabric by itself. Also a great innermost layer in the winter time.

TOG rating for Sleeveless Organic Cotton Rib Knit Sleeper Bag TOG 1.5
TOG ratingAmbient room temperature
1.566-80 F

The TOG rating describes the warmth or thermal resistance of a fabric, and is widely used in the UK and Europe to describe warmth levels of duvets, blankets and sleeping bags. The higher the TOG rating, the greater the warmth.

Customer Reviews

4.9 Based on 50 Reviews
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Suzette G.
United States
I recommend this product


This is the PERFECT, comfy “bag” for babies! Better than a blanket because they can’t kick it off. And the velour/fleece bag is the best for warmth, too. I started buying these for my grandkids 10 years ago and am buying them now for shower gifts. Everything from Castleware is awesome!

United States United States

Favorite sleeper bags

Excellent quality and doesn’t pill. I’ve tried many different brands of sleeper bags and this is by far my favorite brand.

Allison W.
United States United States

Perfect sleep sack!

Excellent quality, soft fabric, great fit! Perfect for the summer months.

Melissa C.
United States United States

Not thick like Burts Bees 1.5 TOG

I'm surprised this is rated 1.5 TOG as it is the same heaviness as the regular Burts Bees Sleep Sack. I'm disappointed as I had high hopes and needed a XL sleep sack for my 2 year old. If you are expecting a thick 1.5 TOG recommend getting the higher rated TOG sleep sacks.


CastleWare Baby

Hi Melissa, TOG ratings are a guideline, there is no set rating structure across the industry that's why I have the recommended room ambient temperature listed on each product page as well as a description of the fabric and what it's recommended for. In this case it's TOG rating 1.5 (66-80 F). Baby Rib Knit A light/mid weight fabric. Soft with plenty of stretch across the width. Our most popular summer weight fabric by itself. Also a great innermost layer in the winter time.

Emily T.
United States United States


I bought size 3T for my 19 month old. She's tall for her age, and I had trouble finding a larger size wearable blanket that's organic cotton. It fits very well! The blanket is very soft and high quality. It is expensive but the price is definitely worth the quality.