---
product_id: 379836394
title: "WONDAY Toddler Sleep Sacks, Sleeveless Sleep Sack with Legs 12M-5T"
brand: "wonday"
price: "¥11759"
currency: JPY
in_stock: true
category: "Wonday"
url: https://www.desertcart.jp/products/379836394-wonday-toddler-sleep-sacks-sleeveless-sleep-sack-with-legs-12m
store_origin: JP
region: Japan
---

# 2-way zipper for quick changes Sleepless freedom with feet design 0.5 TOG perfect warmth WONDAY Toddler Sleep Sacks, Sleeveless Sleep Sack with Legs 12M-5T

**Brand:** wonday
**Price:** ¥11759
**Availability:** ✅ In Stock

## Summary

> 🛌 Unlock bedtime freedom with WONDAY – where comfort meets toddler independence!

## Quick Answers

- **What is this?** WONDAY Toddler Sleep Sacks, Sleeveless Sleep Sack with Legs 12M-5T by wonday
- **How much does it cost?** ¥11759 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/379836394-wonday-toddler-sleep-sacks-sleeveless-sleep-sack-with-legs-12m)

## Best For

- wonday enthusiasts

## Why This Product

- Trusted wonday brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Softness That Grows:** Premium cotton fabric gets softer with every wash, gentle on sensitive skin year-round.
- • **Hip-Healthy Roominess:** Generous fit supports natural leg movement and healthy hip development for active sleepers.
- • **All-Night Cozy Comfort:** 0.5 TOG warmth keeps your toddler snug while breathable cotton prevents overheating.
- • **Move Freely, Sleep Safely:** Sleeveless design with feet lets toddlers stand, walk, and play without tripping hazards.
- • **Parent-Approved Convenience:** Bottom-up 2-way zipper enables silent, hassle-free diaper changes without full undressing.

## Overview

The WONDAY Toddler Sleep Sack with Legs is a sleeveless, 0.5 TOG wearable blanket crafted from breathable, ultra-soft 100% cotton. Designed for toddlers aged 12 months to 5 years, it features a unique feet design for safe mobility, a 2-way zipper for easy diaper changes, and a roomy fit that supports healthy hip development. Perfect for year-round use, it ensures your little one stays cozy without overheating, making it a must-have for active sleepers transitioning from swaddles.

## Description

Toddler sleep sack with feet, toddler sleeping sacks with legs, baby sleep sack sleep sack 12-18 months sleep sack 18-24 months baby sleep sack toddler sleep sack baby sleeping sack sleep sacks 3t sleepsack 2t sleep sack for toddlers toddler sleep sack with feet toddler sleeping bag baby sleeping sack bag toddler sleeping sack with sleeves baby wearable blanket

## Features

- FREEDOM TO MOVE SAFELY: Empower your toddler's independence with our innovative sleep sack with feet. This design allows your little one to safely stand, walk, and play before bed and after waking up, eliminating the tripping hazard of traditional sacks. It’s the perfect transition for active sleepers who have outgrown their swaddle.
- NO MORE KICKED-OFF BLANKETS: Finally, a full night of uninterrupted sleep for you and your baby. This wearable blanket provides the perfect warmth (0.5 TOG) and can't be kicked off, ensuring your child stays cozy and safe all night long. The sleeveless design allows for ventilation to prevent overheating, promoting a deeper, more restful sleep.
- MIDDLE-OF-THE-NIGHT DIAPER CHANGES MADE EASY: We designed this with tired parents in mind. The convenient 2-way zipper unzips from the bottom, allowing for quick and quiet diaper changes without having to fully undress your baby. The zipper guard at the top protects your little one's delicate chin and neck from scratches.
- BUTTERY SOFT & BREATHABLE COTTON: Crafted from premium, lightweight cotton, our sleep sack is exceptionally soft and gentle on your baby's skin, getting even softer with every wash. The breathable fabric helps regulate body temperature, making it ideal for year-round use in most climates (simply adjust the PJs underneath).
- ROOMY & COMFORTABLE FIT FOR HEALTHY HIPS: Designed with plenty of room for movement, this sleep sack allows your toddler to comfortably kick, stretch, and find their favorite sleeping position. The generous, hip-healthy design supports natural leg development, giving you peace of mind while your little one dreams.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09KZPXJS6 |
| ASIN  | B0HKD2532V |
| Age Range Description | Little Kid |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #8,250 in Baby ( See Top 100 in Baby ) #135 in Baby Wearable Blankets |
| Brand Name | WONDAY |
| Closure Type | Zipper |
| Collection Name | All |
| Color | Planet |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,584) |
| Date First Available  | August 3, 2021 |
| Department  | Unisex Kids |
| Fabric Type | 100% Cotton |
| Fit Type | Relaxed |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Import Designation | Imported |
| Item Highlight | 0.5TOG Wearable Blanket for Little Walkers, 2-Way Zipper for easy diaper changes |
| Item model number  | 197O |
| Material | Cotton |
| Number of Items | 1 |
| Occasion | Sleep |
| Package Dimensions  | 15 x 15 x 1 inches |
| Pattern | Animal Print |
| Product Care Instructions | Machine Wash |
| Size | 2T-3T |
| Sleeve Length Description | Sleeveless |
| Style | Classic |
| Style Number | 197O |
| Unit Count | 1 Count |

## Images

![WONDAY Toddler Sleep Sacks, Sleeveless Sleep Sack with Legs 12M-5T - Image 1](https://m.media-amazon.com/images/I/61E9XbQGd6L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Is this weighted just on the front? How much weight is added,?**
A: I don’t know a specific weight however I’m not sure that’s what I would call it. It’s super nice-great material and cozy. Enough that I feel it keeps my daughter warm. But if you are looking for something “sensory” based for sleeping this is probably not what I would consider this (not like a weighted blanket in my opinion). I would recommend this if you are just looking for some thing cozy like a sleep sack for a toddler.

**Q: Flame retardant free?**
A: Not entirely sure but I would bet it’s got flame retardant

**Q: Is something supposed to be worn underneath this toddler sleeping sack ?**
A: My kids do both. One likes PJ’s under and the other wears them alone. Both like these and reach for them every night.

**Q: What are the washing instructions for this product? The description above says both "machine wash" and "do not wash."**
A: I machine wash and have not noticed any shrinking. I also dry on low.

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**Shop now:** [https://www.desertcart.jp/products/379836394-wonday-toddler-sleep-sacks-sleeveless-sleep-sack-with-legs-12m](https://www.desertcart.jp/products/379836394-wonday-toddler-sleep-sacks-sleeveless-sleep-sack-with-legs-12m)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-24*