{
  "schema_version": "compare-page.v2",
  "page_id": "sleep-sack-zip-marks-or-fabric-discolouration",
  "url": "https://robotrunk.com/compare/want/sleep-sack-zip-marks-or-fabric-discolouration",
  "title": "Sleep sack zip: marks or fabric discolouration",
  "question": "Does the zip on a sleep sack leave marks on the fabric or discolour it?",
  "answer": "No checked fact reports zip marks or discolouration on the fabric. The closest facts are these. ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag): Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well. ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG): The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
  "kind": "sleep sack",
  "market": "US",
  "generated_at": "2026-10-23T05:26:12.197Z",
  "columns": [
    "Zip after washing",
    "Zip pull protection",
    "Zip fastening"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p2.f10",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "build quality over time",
      "value": "Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well.",
      "stated_as": "Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well.",
      "source_type": "review",
      "source_url": "https://sciencebasedkids.com/reviews/ergopouch-cocoon-swaddle/",
      "source_read_at": "2026-10-11T20:28:33.222Z"
    },
    {
      "ref": "p2.f12",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "zip pull protection",
      "value": "The same parent highlights the two-way zip with a protective tab at each pull so the baby's skin is not scratched as it wriggles.",
      "stated_as": "The same parent highlights the two-way zip with a protective tab at each pull so the baby's skin is not scratched as it wriggles.",
      "source_type": "review",
      "source_url": "https://www.ptt.cc/bbs/BabyMother/M.1487982545.A.CFC.html",
      "source_read_at": "2026-10-11T20:28:54.155Z"
    },
    {
      "ref": "p3.f11",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG)",
      "field": "zip fastening",
      "value": "The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
      "stated_as": "The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
      "source_type": "review",
      "source_url": "https://www.goodto.com/reviews/baby-products/ergopouch-cocoon-swaddle-bag-review",
      "source_read_at": "2026-10-11T21:39:27.503Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8862969462953",
      "name": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "url": "/products/ucp/ergopouch-com/8862969462953",
      "why": "Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well.",
      "cells": [
        {
          "column": "Zip after washing",
          "fact": {
            "field": "build quality over time",
            "value": "Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well.",
            "stated_as": "Across twelve weeks of daily use and frequent washing with four newborns, the fabric showed minimal pilling, kept its shape, and the snaps and two-way zip held up well.",
            "source_type": "review",
            "source_url": "https://sciencebasedkids.com/reviews/ergopouch-cocoon-swaddle/",
            "source_read_at": "2026-10-11T20:28:33.222Z"
          }
        },
        {
          "column": "Zip pull protection",
          "fact": {
            "field": "zip pull protection",
            "value": "The same parent highlights the two-way zip with a protective tab at each pull so the baby's skin is not scratched as it wriggles.",
            "stated_as": "The same parent highlights the two-way zip with a protective tab at each pull so the baby's skin is not scratched as it wriggles.",
            "source_type": "review",
            "source_url": "https://www.ptt.cc/bbs/BabyMother/M.1487982545.A.CFC.html",
            "source_read_at": "2026-10-11T20:28:54.155Z"
          }
        },
        {
          "column": "Zip fastening",
          "fact": null
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8261733810345",
      "name": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG)",
      "url": "/products/ucp/ergopouch-com/8261733810345",
      "why": "The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
      "cells": [
        {
          "column": "Zip after washing",
          "fact": null
        },
        {
          "column": "Zip pull protection",
          "fact": null
        },
        {
          "column": "Zip fastening",
          "fact": {
            "field": "zip fastening",
            "value": "The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
            "stated_as": "The zip makes fastening quick and easy for night nappy changes and prevents the baby from escaping the swaddle.",
            "source_type": "review",
            "source_url": "https://www.goodto.com/reviews/baby-products/ergopouch-cocoon-swaddle-bag-review",
            "source_read_at": "2026-10-11T21:39:27.503Z"
          }
        }
      ]
    }
  ]
}