{
  "schema_version": "compare-page.v2",
  "page_id": "sleep-sack-sizes-and-how-long-each-size-fits",
  "url": "https://robotrunk.com/compare/want/sleep-sack-sizes-and-how-long-each-size-fits",
  "title": "Sleep sack sizes and how long each size fits",
  "question": "How long a sleep sack keeps fitting a baby before a larger size is needed, based on the listed sizes, size limits and fit checks.",
  "answer": "ergoPouch Cocoon Swaddle Sack: The Cocoon Swaddle Sack 0.2 TOG in the Berries print is listed in four sizes: 0000, 0-3M, 3-6M and 6-12M, each with its own SKU. Size 0-3M (000) is 60 cm long, for babies 3-6 kg and about 62 cm tall. Size 3-6M (00) is 70 cm long, for babies 6-8 kg and 62-68 cm tall; ergoPouch notes this size was previously called 2-6 months. ergoPouch says the correct fit is when two fingers can be placed inside the neck opening.\nergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag): The Daydream 0.2 TOG swaddle is listed in three sizes: 0-3M, 3-6M and 6-12M, each with its own SKU. For size 0-3M (also called 000) the pouch is 60 cm long, for babies of 3-6 kg and 62 cm height.\nergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG): The structured product data lists four sizes for this product: 0000, 0-3M, 3-6M and 6-12M.\nergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag): The Starbeam 0.2 TOG Cocoon is sold in three sizes: 0-3M, 3-6M and 6-12M.",
  "kind": "sleep sack",
  "market": "US",
  "generated_at": "2026-10-15T13:33:49.498Z",
  "columns": [
    "Sizes offered",
    "Size limits",
    "Fit check",
    "Fit warning"
  ],
  "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.f1",
      "product": "ergoPouch Cocoon Swaddle Sack",
      "field": "variants and sizes",
      "value": "The Cocoon Swaddle Sack 0.2 TOG in the Berries print is listed in four sizes: 0000, 0-3M, 3-6M and 6-12M, each with its own SKU.",
      "stated_as": "Variant: Berries / 0.2 TOG / 0000 | 29.96 USD | SKU EPCO-0.2T00-00MBE20",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p1.f4",
      "product": "ergoPouch Cocoon Swaddle Sack",
      "field": "dimensions and limits",
      "value": "Size 0-3M (000) is 60 cm long, for babies 3-6 kg and about 62 cm tall.",
      "stated_as": "0-3M\n(000)\n60cm\n3-6kg\n62cm",
      "source_type": "manual",
      "source_url": "https://www.ergopouch.com/pages/size-guide-cocoon-swaddle-sack",
      "source_read_at": "2026-10-11T20:35:23.742Z"
    },
    {
      "ref": "p1.f5",
      "product": "ergoPouch Cocoon Swaddle Sack",
      "field": "fabric riding over the face",
      "value": "Reports that the bag creeps up over the baby's face during the night, even in what parents believed was the correct size, appear several times, and two parents describe it as a suffocation risk.",
      "stated_as": "Reports that the bag creeps up over the baby's face during the night, even in what parents believed was the correct size, appear several times, and two parents describe it as a suffocation risk.",
      "source_type": "review",
      "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
      "source_read_at": "2026-10-11T20:35:24.681Z"
    },
    {
      "ref": "p1.f10",
      "product": "ergoPouch Cocoon Swaddle Sack",
      "field": "checking the fit",
      "value": "ergoPouch says the correct fit is when two fingers can be placed inside the neck opening.",
      "stated_as": "You should be able to put 2 fingers inside the neck opening for the correct fit.",
      "source_type": "manual",
      "source_url": "https://www.ergopouch.com/pages/how-to-use-cocoon-swaddle-sack",
      "source_read_at": "2026-10-11T20:35:09.209Z"
    },
    {
      "ref": "p1.f11",
      "product": "ergoPouch Cocoon Swaddle Sack",
      "field": "dimensions and limits",
      "value": "Size 3-6M (00) is 70 cm long, for babies 6-8 kg and 62-68 cm tall; ergoPouch notes this size was previously called 2-6 months.",
      "stated_as": "3-6M*\n(00)\n70cm\n6-8kg\n62-68cm",
      "source_type": "manual",
      "source_url": "https://www.ergopouch.com/pages/size-guide-cocoon-swaddle-sack",
      "source_read_at": "2026-10-11T20:35:23.742Z"
    },
    {
      "ref": "p2.f5",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "size guide 0-3M",
      "value": "For size 0-3M (also called 000) the pouch is 60 cm long, for babies of 3-6 kg and 62 cm height.",
      "stated_as": "0-3M\n(000)\n60cm\n3-6kg\n62cm",
      "source_type": "manual",
      "source_url": "https://www.ergopouch.com/pages/how-to-use-cocoon-swaddle-sack",
      "source_read_at": "2026-10-11T20:26:35.440Z"
    },
    {
      "ref": "p2.f6",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "rides up over face",
      "value": "Several parents who say they used the correct size report the swaddle creeping up over the baby's face with the arms in; one says they only noticed because they checked in the night and calls it a suffocation risk.",
      "stated_as": "Several parents who say they used the correct size report the swaddle creeping up over the baby's face with the arms in; one says they only noticed because they checked in the night and calls it a suffocation risk.",
      "source_type": "review",
      "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
      "source_read_at": "2026-10-11T20:26:43.667Z"
    },
    {
      "ref": "p2.f11",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon Swaddle Bag)",
      "field": "sizes sold",
      "value": "The Daydream 0.2 TOG swaddle is listed in three sizes: 0-3M, 3-6M and 6-12M, each with its own SKU.",
      "stated_as": "Daydream / 0.2 TOG / 0-3M — Daydream / 0.2 TOG / 3-6M — Daydream / 0.2 TOG / 6-12M",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p3.f1",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "sizes",
      "value": "The Starbeam 0.2 TOG Cocoon is sold in three sizes: 0-3M, 3-6M and 6-12M.",
      "stated_as": "Starbeam / 0.2 TOG / 0-3M — Starbeam / 0.2 TOG / 3-6M — Starbeam / 0.2 TOG / 6-12M",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p3.f6",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "suffocation risk",
      "value": "Several users report the swaddle creeping up over the baby's face when the arms are in, and describe this as a suffocation risk even in what they believe is the correct size.",
      "stated_as": "Several users report the swaddle creeping up over the baby's face when the arms are in, and describe this as a suffocation risk even in what they believe is the correct size.",
      "source_type": "review",
      "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
      "source_read_at": "2026-10-11T21:56:56.462Z"
    },
    {
      "ref": "p4.f2",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG)",
      "field": "sizes",
      "value": "The structured product data lists four sizes for this product: 0000, 0-3M, 3-6M and 6-12M.",
      "stated_as": "\"size\":[{\"@type\":\"SizeSpecification\",\"name\":\"0000\"},{\"@type\":\"SizeSpecification\",\"name\":\"0-3M\"},{\"@type\":\"SizeSpecification\",\"name\":\"3-6M\"},{\"@type\":\"SizeSpecification\",\"name\":\"6-12M\"}]",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-0-2-tog-sage",
      "source_read_at": "2026-10-11T21:39:13.615Z"
    },
    {
      "ref": "p4.f10",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag (0.2 TOG)",
      "field": "safety - stretchy fabric and zip",
      "value": "The 0.2 tog fabric was reported as too stretchy to hold fists in: the baby wriggled hands out through the top, the zip came undone and the fabric rode up over the face, while the same parent was happy with the 1.0 tog version.",
      "stated_as": "The 0.2 tog fabric was reported as too stretchy to hold fists in: the baby wriggled hands out through the top, the zip came undone and the fabric rode up over the face, while the same parent was happy with the 1.0 tog version.",
      "source_type": "review",
      "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
      "source_read_at": "2026-10-11T21:39:26.676Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8261733449897",
      "name": "ergoPouch Cocoon Swaddle Sack",
      "url": "/products/ucp/ergopouch-com/8261733449897",
      "why": "Size 0-3M (000) is 60 cm long, for babies 3-6 kg and about 62 cm tall.",
      "cells": [
        {
          "column": "Sizes offered",
          "fact": {
            "field": "variants and sizes",
            "value": "The Cocoon Swaddle Sack 0.2 TOG in the Berries print is listed in four sizes: 0000, 0-3M, 3-6M and 6-12M, each with its own SKU.",
            "stated_as": "Variant: Berries / 0.2 TOG / 0000 | 29.96 USD | SKU EPCO-0.2T00-00MBE20",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        },
        {
          "column": "Size limits",
          "fact": {
            "field": "dimensions and limits",
            "value": "Size 0-3M (000) is 60 cm long, for babies 3-6 kg and about 62 cm tall.",
            "stated_as": "0-3M\n(000)\n60cm\n3-6kg\n62cm",
            "source_type": "manual",
            "source_url": "https://www.ergopouch.com/pages/size-guide-cocoon-swaddle-sack",
            "source_read_at": "2026-10-11T20:35:23.742Z"
          }
        },
        {
          "column": "Fit check",
          "fact": {
            "field": "checking the fit",
            "value": "ergoPouch says the correct fit is when two fingers can be placed inside the neck opening.",
            "stated_as": "You should be able to put 2 fingers inside the neck opening for the correct fit.",
            "source_type": "manual",
            "source_url": "https://www.ergopouch.com/pages/how-to-use-cocoon-swaddle-sack",
            "source_read_at": "2026-10-11T20:35:09.209Z"
          }
        },
        {
          "column": "Fit warning",
          "fact": {
            "field": "fabric riding over the face",
            "value": "Reports that the bag creeps up over the baby's face during the night, even in what parents believed was the correct size, appear several times, and two parents describe it as a suffocation risk.",
            "stated_as": "Reports that the bag creeps up over the baby's face during the night, even in what parents believed was the correct size, appear several times, and two parents describe it as a suffocation risk.",
            "source_type": "review",
            "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
            "source_read_at": "2026-10-11T20:35:24.681Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "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": "For size 0-3M (also called 000) the pouch is 60 cm long, for babies of 3-6 kg and 62 cm height.",
      "cells": [
        {
          "column": "Sizes offered",
          "fact": {
            "field": "sizes sold",
            "value": "The Daydream 0.2 TOG swaddle is listed in three sizes: 0-3M, 3-6M and 6-12M, each with its own SKU.",
            "stated_as": "Daydream / 0.2 TOG / 0-3M — Daydream / 0.2 TOG / 3-6M — Daydream / 0.2 TOG / 6-12M",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        },
        {
          "column": "Size limits",
          "fact": {
            "field": "size guide 0-3M",
            "value": "For size 0-3M (also called 000) the pouch is 60 cm long, for babies of 3-6 kg and 62 cm height.",
            "stated_as": "0-3M\n(000)\n60cm\n3-6kg\n62cm",
            "source_type": "manual",
            "source_url": "https://www.ergopouch.com/pages/how-to-use-cocoon-swaddle-sack",
            "source_read_at": "2026-10-11T20:26:35.440Z"
          }
        },
        {
          "column": "Fit check",
          "fact": null
        },
        {
          "column": "Fit warning",
          "fact": {
            "field": "rides up over face",
            "value": "Several parents who say they used the correct size report the swaddle creeping up over the baby's face with the arms in; one says they only noticed because they checked in the night and calls it a suffocation risk.",
            "stated_as": "Several parents who say they used the correct size report the swaddle creeping up over the baby's face with the arms in; one says they only noticed because they checked in the night and calls it a suffocation risk.",
            "source_type": "review",
            "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
            "source_read_at": "2026-10-11T20:26:43.667Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "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 structured product data lists four sizes for this product: 0000, 0-3M, 3-6M and 6-12M.",
      "cells": [
        {
          "column": "Sizes offered",
          "fact": {
            "field": "sizes",
            "value": "The structured product data lists four sizes for this product: 0000, 0-3M, 3-6M and 6-12M.",
            "stated_as": "\"size\":[{\"@type\":\"SizeSpecification\",\"name\":\"0000\"},{\"@type\":\"SizeSpecification\",\"name\":\"0-3M\"},{\"@type\":\"SizeSpecification\",\"name\":\"3-6M\"},{\"@type\":\"SizeSpecification\",\"name\":\"6-12M\"}]",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-0-2-tog-sage",
            "source_read_at": "2026-10-11T21:39:13.615Z"
          }
        },
        {
          "column": "Size limits",
          "fact": null
        },
        {
          "column": "Fit check",
          "fact": null
        },
        {
          "column": "Fit warning",
          "fact": {
            "field": "safety - stretchy fabric and zip",
            "value": "The 0.2 tog fabric was reported as too stretchy to hold fists in: the baby wriggled hands out through the top, the zip came undone and the fabric rode up over the face, while the same parent was happy with the 1.0 tog version.",
            "stated_as": "The 0.2 tog fabric was reported as too stretchy to hold fists in: the baby wriggled hands out through the top, the zip came undone and the fabric rode up over the face, while the same parent was happy with the 1.0 tog version.",
            "source_type": "review",
            "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
            "source_read_at": "2026-10-11T21:39:26.676Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8862969036969",
      "name": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "url": "/products/ucp/ergopouch-com/8862969036969",
      "why": "The Starbeam 0.2 TOG Cocoon is sold in three sizes: 0-3M, 3-6M and 6-12M.",
      "cells": [
        {
          "column": "Sizes offered",
          "fact": {
            "field": "sizes",
            "value": "The Starbeam 0.2 TOG Cocoon is sold in three sizes: 0-3M, 3-6M and 6-12M.",
            "stated_as": "Starbeam / 0.2 TOG / 0-3M — Starbeam / 0.2 TOG / 3-6M — Starbeam / 0.2 TOG / 6-12M",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        },
        {
          "column": "Size limits",
          "fact": null
        },
        {
          "column": "Fit check",
          "fact": null
        },
        {
          "column": "Fit warning",
          "fact": {
            "field": "suffocation risk",
            "value": "Several users report the swaddle creeping up over the baby's face when the arms are in, and describe this as a suffocation risk even in what they believe is the correct size.",
            "stated_as": "Several users report the swaddle creeping up over the baby's face when the arms are in, and describe this as a suffocation risk even in what they believe is the correct size.",
            "source_type": "review",
            "source_url": "https://www.productreview.com.au/listings/ergopouch-ergococoon-swaddle-0-2-tog",
            "source_read_at": "2026-10-11T21:56:56.462Z"
          }
        }
      ]
    }
  ]
}