---
title: "winter sleep sack 12-18 months — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/winter-sleep-sack-12-18-months"
last_updated: "2026-07-09T21:54:55.766Z"
locale: en
meta:
  description: "a small market ($6K/yr) — winter sleep sack 12-18 months doesn't clear our bar today."
  "og:description": "a small market ($6K/yr) — winter sleep sack 12-18 months doesn't clear our bar today."
  "og:title": "winter sleep sack 12-18 months — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
---

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# **winter sleep sack 12-18 months**

**Skip it****43/100 **

a small market ($6K/yr) — winter sleep sack 12-18 months doesn't clear our bar today.

**Market/yr**

**$6K**

**Growth (1y)**

**+90.0%**

**Products**

**26**

**Brands**

**16**

was 5 a year ago

**Sellers**

**22**

**Price range**

**$14.84–$50.74**

**Returns**

**5.4%**

**Rating**

**4.7★**

**Skip it**

Scored 43/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**0**

 ×0.30

Growth

**62**

 ×0.30

Competition

**79**

 ×0.20

Quality gap

**25**

 ×0.10

Returns

**56**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +90.0% year over year.

5K3KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 31.4×

## **Competition**

- Yoofoss30% - Hudson Baby8% - Looxii8% - Unnivoll8% - BubblePanda7% - Okayinn6% - Other (10 brands)33%

Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen. 16 brands and 22 sellers compete here.

**Brands**

**16 **▲rising

was 5 a year ago

**Sellers**

**22**

**Top 5 brand share**

**61%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![Yoofoss Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Organic Cotton Toddler Sleeping Sack 2-Way Zipper Warm Quilted Sleep Sack](https://m.media-amazon.com/images/I/51a68+6vaWL.jpg) [**Yoofoss Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Organic Cotton Toddler Sleeping Sack 2-Way Zipper Warm Quilted Sleep Sack**](https://www.amazon.com/dp/B0CCVQ68VF)

Yoofoss$24.394.6★1,76411%▼falling

2
![Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm](https://m.media-amazon.com/images/I/414QwVN2oTL.jpg) [**Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm**](https://www.amazon.com/dp/B0FCFM5NBD)

Yoofoss$20.684.4★3346%▲rising

3
![Looxii Baby Sleep Sack - 12-18 Months 2.5 TOG Wearable Blanket Cotton Quilted Toddler Sleeping Sack with 2-Way Zipper for Warm Winter](https://m.media-amazon.com/images/I/417qqJ8Ij5L.jpg) [**Looxii Baby Sleep Sack - 12-18 Months 2.5 TOG Wearable Blanket Cotton Quilted Toddler Sleeping Sack with 2-Way Zipper for Warm Winter**](https://www.amazon.com/dp/B0DBH13246)

Looxii$19.124.6★2106%▲rising

4
![Hudson Baby Unisex Baby Plush Sleeping Bag Sack Blanket Gray Clouds 12-18 Months](https://m.media-amazon.com/images/I/41ocef4uVmL.jpg) [**Hudson Baby Unisex Baby Plush Sleeping Bag Sack Blanket Gray Clouds 12-18 Months**](https://www.amazon.com/dp/B08NMZ4XL2)

Hudson Baby$15.344.6★9166%▼falling

5
![BubblePanda Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Soft Toddler Sleeping Sack for Babies 2-Way Zipper Baby Wearable Blanket](https://m.media-amazon.com/images/I/21KSPHs3h4L.jpg) [**BubblePanda Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Soft Toddler Sleeping Sack for Babies 2-Way Zipper Baby Wearable Blanket**](https://www.amazon.com/dp/B0CMTFR8SM)

Okayinn$26.344.6★1,8846%▲rising

6
![Yoofoss Fleece Baby Sleep Sack 12-18 Months with Plush Dots TOG 1.5 Baby W](https://m.media-amazon.com/images/I/41AcbP5WAzL.jpg) [**Yoofoss Fleece Baby Sleep Sack 12-18 Months with Plush Dots TOG 1.5 Baby W**](https://www.amazon.com/dp/B0CDX639FJ)

Yoofoss$26.954.8★1,0486%▼falling

7
![FIEMOL Fleece Baby Sleep Sack 12-18 Months 1.5 TOG Cotton Baby Wearable Blanket With Soft Plush Dots 2 Pack Newborn and Infant Warm Sleeping Sack with 2-Way Zipper Blue&Grey](https://m.media-amazon.com/images/I/51n-GpJxsEL.jpg) [**FIEMOL Fleece Baby Sleep Sack 12-18 Months 1.5 TOG Cotton Baby Wearable Blanket With Soft Plush Dots 2 Pack Newborn and Infant Warm Sleeping Sack with 2-Way Zipper Blue&Grey**](https://www.amazon.com/dp/B0DBD5WZBT)

FIEMOL$24.964.8★2285%▲rising

8
![Rayon Made from Bamboo Sleep Sack 12-18 Months 2.5 Tog Winter Warm Ultra Soft Baby Wearable Blanket Toddler Sleep Sack for Babies Unisex Girl Boy 2-Way Zipper Quilted Thick Baby Sleeping Bag](https://m.media-amazon.com/images/I/21KSPHs3h4L.jpg) [**Rayon Made from Bamboo Sleep Sack 12-18 Months 2.5 Tog Winter Warm Ultra Soft Baby Wearable Blanket Toddler Sleep Sack for Babies Unisex Girl Boy 2-Way Zipper Quilted Thick Baby Sleeping Bag**](https://www.amazon.com/dp/B0CG1L31DG)

BubblePanda$34.264.6★5315%▲rising

9
![PurComfy Supersoft Sleep Sack 1.0 TOG Premium Bamboo Viscose Baby Sleeping Bag 2-Way Safe Zipper Sleep Sacks 6-15 Months (Whale)](https://m.media-amazon.com/images/I/31MWHwljX3L.jpg) [**PurComfy Supersoft Sleep Sack 1.0 TOG Premium Bamboo Viscose Baby Sleeping Bag 2-Way Safe Zipper Sleep Sacks 6-15 Months (Whale)**](https://www.amazon.com/dp/B0CJFKVQFQ)

PurComfy$33.064.6★2,3215%▲rising

10

![Unnivoll Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Cotton Fabric Newborn Infant Sleeping Sack 2-Way Zipper Quilted Baby Sleep Bag Warm Soft Green](https://m.media-amazon.com/images/I/31sYrr+zOFL.jpg) [**Unnivoll Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Cotton Fabric Newborn Infant Sleeping Sack 2-Way Zipper Quilted Baby Sleep Bag Warm Soft Green**](https://www.amazon.com/dp/B0FCFSFRRC)

Unnivoll$18.254.7★4485%▼falling

11

![Supersoft Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Toddler Sleep Sack Baby Wearable Blanket with 2-Way Zipper Unisex Sleeping Bag for Babies All-year-around - Pink](https://m.media-amazon.com/images/I/21y83NZgK+L.jpg) [**Supersoft Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Toddler Sleep Sack Baby Wearable Blanket with 2-Way Zipper Unisex Sleeping Bag for Babies All-year-around - Pink**](https://www.amazon.com/dp/B0DDNH15G2)

EasyFi$22.274.7★4584%▲rising

12

![CUDDLEBAMBOO Bamboo Viscose 1.0 Tog Sleep Sack 6-12-18 Months Soft Breathable Baby Sleeping Bag Wearable Blanket Baby with 2-Way Zipper Sage](https://m.media-amazon.com/images/I/31NCE2ay0nL.jpg) [**CUDDLEBAMBOO Bamboo Viscose 1.0 Tog Sleep Sack 6-12-18 Months Soft Breathable Baby Sleeping Bag Wearable Blanket Baby with 2-Way Zipper Sage**](https://www.amazon.com/dp/B0FS7LFSGD)

CUDDLEBAMBOO$28.434.6★474%▲rising

13

![Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm](https://m.media-amazon.com/images/I/41SuzrXdn0L.jpg) [**Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm**](https://www.amazon.com/dp/B0FCFKJXQP)

Yoofoss$26.584.4★3343%▼falling

14

![Unnivoll Baby Sleep Sack 12-18 Months 3 Pack 100% Cotton Lightweight 0.5 TOG Wearable Blanket Baby Sleep Bag with 2-Way Zipper for Infant Toddler Blue](https://m.media-amazon.com/images/I/51GtdXYreGL.jpg) [**Unnivoll Baby Sleep Sack 12-18 Months 3 Pack 100% Cotton Lightweight 0.5 TOG Wearable Blanket Baby Sleep Bag with 2-Way Zipper for Infant Toddler Blue**](https://www.amazon.com/dp/B0CD7V9PFS)

Unnivoll$27.364.8★1,7053%▲rising

15

![davids kids 3 Pack Warm Micro Fleece Baby Sleep Sack 12-18 Months Soft Baby Wearable Blankets with 2-Way Zipper Comfy Winter Sleeping Bags for Toddler Boys Girls Neutral Large Size Animal Forest](https://m.media-amazon.com/images/I/51gEX1NrPJL.jpg) [**davids kids 3 Pack Warm Micro Fleece Baby Sleep Sack 12-18 Months Soft Baby Wearable Blankets with 2-Way Zipper Comfy Winter Sleeping Bags for Toddler Boys Girls Neutral Large Size Animal Forest**](https://www.amazon.com/dp/B0D5PTMNYH)

david's kids$20.154.6★3243%▲rising

**~~Showing 15 of 26 — show all ~~**

## **Product shelf**

All 26 tracked products in this niche.

Top sellersNewestTrending

[![Yoofoss Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Organic Cotton Toddler Sleeping Sack 2-Way Zipper Warm Quilted Sleep Sack](https://m.media-amazon.com/images/I/51a68+6vaWL.jpg)**Yoofoss Baby Sleep Sack 12-18 Months TOG 2.5 Winter Baby Wearable Blanket 100% Organic Cotton Toddler Sleeping Sack 2-Way Zipper Warm Quilted Sleep Sack** Yoofoss**$24.39**4.6★1,764 reviews](https://www.amazon.com/dp/B0CCVQ68VF) [![Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm](https://m.media-amazon.com/images/I/414QwVN2oTL.jpg)**Yoofoss Baby Sleep Sack 12-18 Months Long Sleeve Sleep Sack 1.5 Tog Fleece Baby Wearable Blanket with 2-Way Zipper Soft Warm** Yoofoss**$20.68**4.4★334 reviews](https://www.amazon.com/dp/B0FCFM5NBD) [![Looxii Baby Sleep Sack - 12-18 Months 2.5 TOG Wearable Blanket Cotton Quilted Toddler Sleeping Sack with 2-Way Zipper for Warm Winter](https://m.media-amazon.com/images/I/417qqJ8Ij5L.jpg)**Looxii Baby Sleep Sack - 12-18 Months 2.5 TOG Wearable Blanket Cotton Quilted Toddler Sleeping Sack with 2-Way Zipper for Warm Winter** Looxii**$19.12**4.6★210 reviews](https://www.amazon.com/dp/B0DBH13246) [![Hudson Baby Unisex Baby Plush Sleeping Bag Sack Blanket Gray Clouds 12-18 Months](https://m.media-amazon.com/images/I/41ocef4uVmL.jpg)**Hudson Baby Unisex Baby Plush Sleeping Bag Sack Blanket Gray Clouds 12-18 Months** Hudson Baby**$15.34**4.6★916 reviews](https://www.amazon.com/dp/B08NMZ4XL2) [![BubblePanda Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Soft Toddler Sleeping Sack for Babies 2-Way Zipper Baby Wearable Blanket](https://m.media-amazon.com/images/I/21KSPHs3h4L.jpg)**BubblePanda Rayon Made from Bamboo Sleep Sack 12-18 Months 1.0 Tog Soft Toddler Sleeping Sack for Babies 2-Way Zipper Baby Wearable Blanket** Okayinn**$26.34**4.6★1,884 reviews](https://www.amazon.com/dp/B0CMTFR8SM) [![Yoofoss Fleece Baby Sleep Sack 12-18 Months with Plush Dots TOG 1.5 Baby W](https://m.media-amazon.com/images/I/41AcbP5WAzL.jpg)**Yoofoss Fleece Baby Sleep Sack 12-18 Months with Plush Dots TOG 1.5 Baby W** Yoofoss**$26.95**4.8★1,048 reviews](https://www.amazon.com/dp/B0CDX639FJ) [![FIEMOL Fleece Baby Sleep Sack 12-18 Months 1.5 TOG Cotton Baby Wearable Blanket With Soft Plush Dots 2 Pack Newborn and Infant Warm Sleeping Sack with 2-Way Zipper Blue&Grey](https://m.media-amazon.com/images/I/51n-GpJxsEL.jpg)**FIEMOL Fleece Baby Sleep Sack 12-18 Months 1.5 TOG Cotton Baby Wearable Blanket With Soft Plush Dots 2 Pack Newborn and Infant Warm Sleeping Sack with 2-Way Zipper Blue&Grey** FIEMOL**$24.96**4.8★228 reviews](https://www.amazon.com/dp/B0DBD5WZBT) [![Rayon Made from Bamboo Sleep Sack 12-18 Months 2.5 Tog Winter Warm Ultra Soft Baby Wearable Blanket Toddler Sleep Sack for Babies Unisex Girl Boy 2-Way Zipper Quilted Thick Baby Sleeping Bag](https://m.media-amazon.com/images/I/21KSPHs3h4L.jpg)**Rayon Made from Bamboo Sleep Sack 12-18 Months 2.5 Tog Winter Warm Ultra Soft Baby Wearable Blanket Toddler Sleep Sack for Babies Unisex Girl Boy 2-Way Zipper Quilted Thick Baby Sleeping Bag** BubblePanda**$34.26**4.6★531 reviews](https://www.amazon.com/dp/B0CG1L31DG)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Soft Feel**21%

*“Crazy soft”*

**Quality-Overall**12%

*“product is very well made”*

**Sleep Quality**10%

*“cozy all night”*

**Size-Overall**8%

*“Great size”*

**Comfort-Overall**6%

*“comfortable”*

**Advertised Vs Actual Product**5%

*“Accurate description”*

**Thickness**4%

*“It is thicker than any tog 2 Ive used on the past”*

**Warmth**4%

*“These are warm”*

**Durability**3%

*“Soft and durable”*

**Value For Money**3%

*“Great price”*

### **What buyers complain about **

**Size-Overall**27%

*“Runs big”*

**Material Quality**11%

*“Didn't like the feel of the material, returned”*

**Zipper Quality**6%

*“But the zippers are very bulky”*

**Thickness**4%

*“Item was thicker than expected”*

**Drying Time**4%

*“long drying times”*

**Washability**4%

*“when I washed the sleep sacks one of the zippers broke on one of them”*

**Advertised Vs Actual Product**3%

*“1 star for the misleading nature of the listing”*

**Value For Money**3%

*“was hesitant given the price point”*

**Sleep Quality**2%

*“They arent like other 1.5 TOG sleep sacs”*

**Smell**2%

*“Chemical smell”*

#### **Top return reasons**- Size-Overall57% - Material Quality5% - Thickness4% - Zipper Quality4% - Length4% - Warmth3% - Advertised Vs Actual Product3% - Thin3% - Width2% - Age Suitability2%