Muslin zzZipMe Sack, 2-Way Zip, Little Lambs, Sterling

# Muslin zzZipMe Sack, 2-Way Zip, Little Lambs, Sterling Size: Large 12-18 Months, Medium 6-12 Months, Small 0-6 Months Brand: SwaddleDesigns Category: Clothing > Sleep Sacks Age: 0-3m, 3-6m, 6-9m, 9-12m, 12-18m This muslin zzZipMe Sack is a sleeveless wearable blanket made for warmer sleep environments, once a baby has transitioned out of swaddling. It uses a breathable, open weave double gauze cotton muslin fabric suited to summer nights or consistently warm rooms. The fabric is 100% cotton muslin that becomes softer with every wash. A 2-way, 2-pull zipper opens from the top for easy dressing and from the foot for diaper changes, and a soft fabric zipper guard keeps the zipper from touching baby's skin. It is machine washable. The sack is non-weighted and complies with AAP recommendations. Available in sizes covering 0-6, 6-12, and 12-18 months, it fits babies up to 36 inches tall depending on size. ## Key features - 100% cotton muslin construction - Breathable, open weave double gauze fabric - Softens with every wash - 2-way zipper with 2 pulls, zips down from the top or up from the foot - Fabric zipper guard shields baby's skin from the zipper - Machine washable - Non-weighted, complies with AAP recommendation - Sleeveless design for warmer sleep environments ## TrustScore: 85/100 TrustScore is Birch's proprietary rating, from 0 to 100, built from 50+ signals that reflect what actually matters to parents — safety, materials, recalls, certifications and quality. We don't take paid placements or sponsored rankings, so a score is never influenced by who pays to be seen. This product's TrustScore: 85/100, weighted across 10 criteria. - Safe-Sleep Design Compliance: 91/100. The sack is explicitly non-weighted and stated to comply with AAP recommendations, uses a two-way zipper rather than ties or cords, and a related SwaddleDesigns sleep sack has earned IHDI Hip Healthy recognition, though no TOG rating is published for this specific sleeveless muslin item. - Fiber Content & Origin: 85/100. The garment is stated to be 100% cotton muslin with an open-weave design aimed at reducing overheating, but no certifying body or organic status is claimed for this specific product and country of manufacture is not stated for it. - Textile Certification: 78/100. No GOTS or OEKO-TEX certification is named for this muslin sack; the fabric is described only as 100% cotton muslin with no certifying body or standard attached to the finished garment. - Recall History: 97/100. We queried the CPSC recall database directly — nearly 10,000 records spanning 1973 to 2026 — and SwaddleDesigns appears nowhere, in any role. Control terms like diaper, crib and stroller all return matches, confirming the search actually covers this product class. - Sleepwear Flammability Compliance: 78/100. This sack is sold in sizes up to 12-18 months, so the under-9-months swaddle exemption from 16 CFR 1615/1616 does not clearly cover the full size range, and no compliance route or exemption basis is stated anywhere for the garment. - Certification Credibility: 84/100. The brand names an 'Organic' collection and cites an award for a different product, but no certifying body, standard name, or certificate number is given for this muslin sack, and it isn't part of the organic line. - Chemical Finish Avoidance: 84/100. The fabric is breathable, open-weave, preshrunk and machine washable, with no wrinkle-resistant, non-iron or stain/water-repellent claims anywhere, but there is also no explicit brand statement ruling out such finishes. - Transparency & Support: 84/100. Manufacturing is described only partially — some products sewn in Seattle alongside unnamed international factories — with no full materials list and no country of origin stated specifically for this sack; warranty carries a stated exclusion for improper washing/handling. - Fastener & Neck-Opening Safety: 90/100. The sack has a soft fabric zipper guard built in specifically to keep the zipper from touching the baby's skin, though no neck-opening measurement or head-pass testing is stated. - Hardware & Print Safety: 77/100. This sack uses a zipper rather than snaps or prints, and there is no nickel-free, lead-free or print-method disclosure at all for its hardware. ## Specifications - Material: 100% cotton muslin (open weave double gauze) - Care: Machine washable