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Loulou Lollipop muslin 0.5 TOG lightweight baby sleep bag in Tiny Engineers — front view on white background

Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo

Tiny Engineers / 0-6 M
$27.87
$27.87 $45.95 39% off
✓ Extra 10% off applied on checkout
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Loulou Lollipop muslin 0.5 TOG lightweight baby sleep bag in Tiny Engineers — front view on white background
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  • Loulou Lollipop muslin 0.5 TOG lightweight baby sleep bag in Tiny Engineers — front view on white background
  • Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo
  • Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo
  • Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo
Back
Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo

Baby Muslin Sleep Bag 0.5 TOG in Tanboocel® Viscose from Bamboo

Loulou Lollipop

$27.87
$27.87 $45.95 39% off
✓ Extra 10% off applied on checkout
PrintTiny Engineers
Size

Size Guide

Size Chart

SizeHeight (in)Weight (lb)
0-6 M23 - 26"10 - 16 lbs
6-18 M26 - 34"16 - 26 lbs
18-36 M34 - 40"26 - 40 lbs

How it should fit

These run true to size. A toddler at 24 months who's around the 50th percentile for height usually fits 2T comfortably.

Shipping

Free Delivery Nov 18 – 20

Read the full shipping policy

Returns

90-day returns
Return within 90 days of delivery.
Free return shipping
Start your return from your orders page and we'll send a prepaid label.
Condition
Items must be unopened, unused and in their original packaging.
Refunds
Refunded to your original payment method within 10 business days of approval. No restocking fee.
Cancellation
You can cancel any time before your order ships.
Damaged or wrong item?
Email support@birchstore.com within 7 days of delivery and we'll make it right.
Read the full returns policy

Key Features

Certifications

    • OEKO-TEX Certified

    Certified by OEKO-TEX (Standard 100)

    OEKO-TEX STANDARD 100 certifies that every component of a textile item has been lab-tested and found free of harmful substances above set limits.

    What it checks

    • Testing of yarn, fabric, buttons, and other accessories against a list of over 1,000 regulated substances
    • Stricter chemical limits for products with more intensive skin contact, including a dedicated infant/toddler product class
    • Compliance with chemical regulations such as REACH, CPSIA, and the ECHA-SVHC candidate list
    • Annual review of substance limit values and one-year validity per certificate

    What it does not cover It tests for chemical residues only and does not certify general product safety features like choking hazards, flammability, or mechanical construction.

    This certification is held by the brand or manufacturer, not by Birch. We show it because the brand states it for this product. Summarised from the certifying body's own page.

    Read the official standard

    • Certified B Corp

    Certified by B Lab

    Certified B Corp verifies that a company's overall social, environmental, and governance practices meet B Lab's standards, not that any individual product is safe or tested.

    What it checks

    • Assesses a company's impact across areas like climate action, human rights, and governance
    • Based on a self-assessment (B Impact tool) that is independently audited and verified by a third party
    • Follows a framework aligned with ISO 17021-1 requirements for certification bodies
    • Applies to the whole company, not to specific product lines or items

    What it does not cover This mark does not test or certify the safety, quality, or materials of any specific baby or kids product.

    This certification is held by the brand or manufacturer, not by Birch. We show it because the brand states it for this product. Summarised from the certifying body's own page.

    Read the official standard

Specifications

Materials & Care

CURATEIQ

Smarter decisions start here.

We analyze the details that matter to parents so you don't have to.

TrustScore
92 /100

Weighted across 10 criteria

CURATEIQ

TrustScore breakdown

92 /100

We take what's most important for a product to determine the TrustScore. Here's our research:

Safe-Sleep Design Compliance 91

The bag states a 0.5 TOG rating matched to 75-81°F rooms, a sleeveless unweighted design, and a snug-cut neck and armhole bound in soft fabric specifically to prevent riding up over the face during sleep.

Fiber Content & Origin 91

The fabric is disclosed as 70% rayon from bamboo and 30% cotton, an open-weave muslin construction chosen specifically for breathability in warm rooms.

Textile Certification 95

The sleep bag is covered, by the brand's account, by OEKO-TEX STANDARD 100 certificate SH025199672, which the OEKO-TEX Label Check shows as valid at product class I for baby articles and certifies the sleep bag's article type in its fabric, prints and trims. The certificate is held by the maker rather than naming Loulou Lollipop's products.

Recall History 92

We queried the complete CPSC recall database and found one 2022 recall of this brand's children's sleepwear for a flammability-standard violation. That recall covered pajamas, not sleep bags, so it sits outside this product's line while still being part of the record. The recall is CPSC #22-165, announced in June 2022.

Sleepwear Flammability Compliance 89

The sleep bag is meant to be worn over a short-sleeve bodysuit, which CPSC staff treat as general clothing rather than sleepwear, and it is tested to the general clothing flammability standard, 16 CFR Part 1610, with the brand stating that no flame-retardant finish is applied. That classification rests on the brand's dressing guidance.

Certification Credibility 95

The sleep bag is covered, by the brand's account, by OEKO-TEX STANDARD 100 certificate SH025199672, which the OEKO-TEX Label Check shows as valid at product class I for baby articles and lists the sleep bag's article type and fabric. The certificate is held by the maker rather than naming Loulou Lollipop's products.

Chemical Finish Avoidance 95

Loulou Lollipop states that no wrinkle-resistant, easy-care, water- or stain-repellent, antimicrobial or flame-retardant finish is applied to the sleep bag, and the OEKO-TEX STANDARD 100 class I certificate it names, SH025199672, is valid and screens for formaldehyde and PFAS.

Transparency & Support 85

The warranty covers manufacturing defects only, excluding normal wear and improper use, with no stated duration or repair/spare-parts route.

Fastener & Neck-Opening Safety 85

The bag describes a two-way zipper for diaper changes and a snug-cut, soft-bound neck opening sized to the baby's weight, but no zip guard or specific neck-circumference figures are given.

Hardware & Print Safety 95

The sleep bag's printed fabric and trims fall under OEKO-TEX STANDARD 100 certificate SH025199672, valid at product class I and covering zippers and snaps among its accessories, and its two-way zipper is a YKK zipper that is nickel- and lead-free.

A closer look

FAQs

Is muslin better than fleece for baby sleep?

Muslin breathes. Fleece traps heat. For warm-weather sleep, muslin moves humidity off the baby's skin and keeps temperature stable. Fleece sleep sacks are designed for cold nurseries and shouldn't be the default in summer.

Are baby sleep sacks safe for newborns?

Yes — once the baby is out of the swaddle phase and can roll. Health Canada notes that many parents use a sleep sack instead of a blanket, and is explicit that getting the size right is what makes it safe. Choose the correct TOG for room temperature and a size that fits at the shoulders so the bag can't slip over the face.

Customer Stories

I love your sleep sacks. I have bought many for my grandchildren. My daughters love them.
Catriona Brown Fletcher

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