{
  "schema_version": "compare-page.v2",
  "page_id": "sleep-sack-zips-fabric-marks-and-skin-irritation",
  "url": "https://robotrunk.com/compare/want/sleep-sack-zips-fabric-marks-and-skin-irritation",
  "title": "Sleep sack zips: fabric marks and skin irritation",
  "question": "Do the zips on sleep sacks leave marks on the fabric or irritate a baby's skin?",
  "answer": "ergoPouch Cocoon Swaddle Sack: 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. 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 Sleep Suit Sack 3.5 TOG Dragonflies: Zips and seams are reported to hold up well over repeated washing. ergoPouch Sleep Suit Sack 3.5 TOG: Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram. No checked fact reports zip marks on the fabric.",
  "kind": "sleep sack",
  "market": "US",
  "generated_at": "2026-10-17T09:50:45.297Z",
  "columns": [
    "Skin protection",
    "Zip durability",
    "Zip ease"
  ],
  "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": "p1.f8",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "ease of use",
      "value": "A tester using the 1.0 TOG version found it super easy and quicker than traditional swaddling - you simply zip the baby in - and something tired new parents would value.",
      "stated_as": "A tester using the 1.0 TOG version found it super easy and quicker than traditional swaddling - you simply zip the baby in - and something tired new parents would value.",
      "source_type": "review",
      "source_url": "https://www.mumsnet.com/reviews/ergopouch-cocoon-swaddle-review",
      "source_read_at": "2026-10-11T20:26:47.930Z"
    },
    {
      "ref": "p1.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": "p1.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": "p4.f5",
      "product": "ergoPouch Sleep Suit Sack 3.5 TOG",
      "field": "four-way zip",
      "value": "Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram.",
      "stated_as": "Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram.",
      "source_type": "review",
      "source_url": "https://www.ergopouch.com.au/blogs/product-information/everyday-parents-review-the-sleep-suit-bag",
      "source_read_at": "2026-10-12T03:53:59.956Z"
    },
    {
      "ref": "p6.f10",
      "product": "ergoPouch Sleep Suit Sack 3.5 TOG Dragonflies",
      "field": "durability",
      "value": "Zips and seams are reported to hold up well over repeated washing.",
      "stated_as": "Zips and seams are reported to hold up well over repeated washing.",
      "source_type": "review",
      "source_url": "https://clevermum.co.uk/reviews/ergopouch-sleep-suit-bag-review/",
      "source_read_at": "2026-10-12T03:59:08.198Z"
    }
  ],
  "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": "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.",
      "cells": [
        {
          "column": "Skin 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 durability",
          "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 ease",
          "fact": {
            "field": "ease of use",
            "value": "A tester using the 1.0 TOG version found it super easy and quicker than traditional swaddling - you simply zip the baby in - and something tired new parents would value.",
            "stated_as": "A tester using the 1.0 TOG version found it super easy and quicker than traditional swaddling - you simply zip the baby in - and something tired new parents would value.",
            "source_type": "review",
            "source_url": "https://www.mumsnet.com/reviews/ergopouch-cocoon-swaddle-review",
            "source_read_at": "2026-10-11T20:26:47.930Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8261741740201",
      "name": "ergoPouch Sleep Suit Sack 3.5 TOG Dragonflies",
      "url": "/products/ucp/ergopouch-com/8261741740201",
      "why": "Zips and seams are reported to hold up well over repeated washing.",
      "cells": [
        {
          "column": "Skin protection",
          "fact": null
        },
        {
          "column": "Zip durability",
          "fact": {
            "field": "durability",
            "value": "Zips and seams are reported to hold up well over repeated washing.",
            "stated_as": "Zips and seams are reported to hold up well over repeated washing.",
            "source_type": "review",
            "source_url": "https://clevermum.co.uk/reviews/ergopouch-sleep-suit-bag-review/",
            "source_read_at": "2026-10-12T03:59:08.198Z"
          }
        },
        {
          "column": "Zip ease",
          "fact": null
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8279849730217",
      "name": "ergoPouch Sleep Suit Sack 3.5 TOG",
      "url": "/products/ucp/ergopouch-com/8279849730217",
      "why": "Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram.",
      "cells": [
        {
          "column": "Skin protection",
          "fact": null
        },
        {
          "column": "Zip durability",
          "fact": null
        },
        {
          "column": "Zip ease",
          "fact": {
            "field": "four-way zip",
            "value": "Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram.",
            "stated_as": "Trial parents rated the four-way zip as the standout feature, quick and easy to convert between bag and legs and handy when out with the pram.",
            "source_type": "review",
            "source_url": "https://www.ergopouch.com.au/blogs/product-information/everyday-parents-review-the-sleep-suit-bag",
            "source_read_at": "2026-10-12T03:53:59.956Z"
          }
        }
      ]
    }
  ]
}