{
  "schema_version": "compare-page.v2",
  "page_id": "do-sleep-sacks-help-babies-sleep-longer-at-night",
  "url": "https://robotrunk.com/compare/want/do-sleep-sacks-help-babies-sleep-longer-at-night",
  "title": "Do sleep sacks help babies sleep longer at night?",
  "question": "Do sleep sacks help a baby sleep longer through the night?",
  "answer": "ergoPouch Cocoon Swaddle Sack: A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month. A parent reported that their baby went from waking every 2-3 hours to sleeping 6-8 hours a night once in the ergoCocoon, and could then be put back down in the cot.\nergoPouch Sleep Sack 2.5 TOG Sleeved: Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.\nergoPouch Sleep Sack 2.5 TOG Sleeved Willow: Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.\nergoPouch Sleep Sack 2.5 TOG Willow: Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
  "kind": "sleep sack",
  "market": "US",
  "generated_at": "2026-10-18T18:58:53.319Z",
  "columns": [
    "Sleep reports",
    "Warmth rating",
    "Sizes"
  ],
  "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.f5",
      "product": "ergoPouch Sleep Sack 2.5 TOG Willow",
      "field": "variants",
      "value": "The store data lists three sizes under this listing, each with its own SKU.",
      "stated_as": "Willow / 2.5 TOG / 2-4Y — Willow / 2.5 TOG / 3-12M — Willow / 2.5 TOG / 8-24M",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p2.f6",
      "product": "ergoPouch Sleep Sack 2.5 TOG Willow",
      "field": "TOG rating",
      "value": "The page's structured data records a TOG rating of 2.5.",
      "stated_as": "\"TOG Rating\",\"value\":\"2.5 TOG\"",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-willow",
      "source_read_at": "2026-10-12T02:27:08.465Z"
    },
    {
      "ref": "p2.f8",
      "product": "ergoPouch Sleep Sack 2.5 TOG Willow",
      "field": "sleep outcome",
      "value": "Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
      "stated_as": "Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
      "source_type": "blog",
      "source_url": "https://www.ergopouch.com.au/blogs/product-information/everyday-parents-review-the-premium-sleeping-bag-v-sleeping-bag",
      "source_read_at": "2026-10-12T02:28:37.687Z"
    },
    {
      "ref": "p4.f1",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved",
      "field": "sizes",
      "value": "Offered in three sizes: 3-12M, 8-24M and 2-4Y, all in the same 2.5 TOG rating and Daisies print.",
      "stated_as": "Daisies / 2.5 TOG / 3-12M",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p4.f6",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved",
      "field": "TOG rating",
      "value": "The bag is rated 2.5 TOG (a warmth rating, not a temperature).",
      "stated_as": "2.5 TOG",
      "source_type": "guide",
      "source_url": "https://www.ergopouch.com/products/sleep-sack-2-5-tog-sleeved-daisies",
      "source_read_at": "2026-10-12T02:27:35.932Z"
    },
    {
      "ref": "p4.f8",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved",
      "field": "sleep improvement",
      "value": "Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.",
      "stated_as": "Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.",
      "source_type": "blog",
      "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-2-5-tog-jersey-bag-with-sleeves",
      "source_read_at": "2026-10-12T02:28:51.678Z"
    },
    {
      "ref": "p6.f2",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved Willow",
      "field": "sizes",
      "value": "The model comes in three sizes: 3-12M, 8-24M and 2-4Y.",
      "stated_as": "\"size\":[{\"@type\":\"SizeSpecification\",\"name\":\"3-12M\"},{\"@type\":\"SizeSpecification\",\"name\":\"8-24M\"},{\"@type\":\"SizeSpecification\",\"name\":\"2-4Y\"}],\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"TOG Rating\",\"value\":\"2.5 TOG\"}]",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-sleeved-willow",
      "source_read_at": "2026-10-12T02:36:07.038Z"
    },
    {
      "ref": "p6.f5",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved Willow",
      "field": "night waking",
      "value": "Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.",
      "stated_as": "Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.",
      "source_type": "blog",
      "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-2-5-tog-jersey-bag-with-sleeves",
      "source_read_at": "2026-10-12T02:36:26.675Z"
    },
    {
      "ref": "p6.f6",
      "product": "ergoPouch Sleep Sack 2.5 TOG Sleeved Willow",
      "field": "TOG rating",
      "value": "The structured product data states a TOG Rating of 2.5 TOG.",
      "stated_as": "\"name\":\"TOG Rating\",\"value\":\"2.5 TOG\"",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-sleeved-willow",
      "source_read_at": "2026-10-12T02:36:07.038Z"
    },
    {
      "ref": "p11.f8",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon and Cocoon Swaddle Bag)",
      "field": "sleep duration",
      "value": "A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month.",
      "stated_as": "A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month.",
      "source_type": "blog",
      "source_url": "https://gomashiba-blog.com/ergopouch",
      "source_read_at": "2026-10-11T21:40:01.028Z"
    },
    {
      "ref": "p11.f9",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon and Cocoon Swaddle Bag)",
      "field": "sleep duration",
      "value": "A parent reported that their baby went from waking every 2-3 hours to sleeping 6-8 hours a night once in the ergoCocoon, and could then be put back down in the cot.",
      "stated_as": "A parent reported that their baby went from waking every 2-3 hours to sleeping 6-8 hours a night once in the ergoCocoon, and could then be put back down in the cot.",
      "source_type": "review",
      "source_url": "https://www.ptt.cc/bbs/BabyMother/M.1487408802.A.DDE.html",
      "source_read_at": "2026-10-11T21:40:38.838Z"
    },
    {
      "ref": "p11.f10",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon and Cocoon Swaddle Bag)",
      "field": "variants",
      "value": "The store data lists this print in two sizes, Midnight Arrows / 1.0 TOG / 0-3M and Midnight Arrows / 1.0 TOG / 3-6M.",
      "stated_as": "Cocoon Swaddle Sack 1.0 TOG Midnight Arrows",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p11.f11",
      "product": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon and Cocoon Swaddle Bag)",
      "field": "TOG rating",
      "value": "The page's structured product data lists a TOG rating property with the value 1.0 TOG.",
      "stated_as": "\"name\":\"TOG Rating\",\"value\":\"1.0 TOG\"",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-1-0-tog-midnight-arrows",
      "source_read_at": "2026-10-11T21:39:45.868Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8806347440297",
      "name": "ergoPouch Cocoon Swaddle Sack (also sold as ErgoCocoon and Cocoon Swaddle Bag)",
      "url": "/products/ucp/ergopouch-com/8806347440297",
      "why": "A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month.",
      "cells": [
        {
          "column": "Sleep reports",
          "fact": {
            "field": "sleep duration",
            "value": "A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month.",
            "stated_as": "A blogger using the 1.0 TOG 0-3M bag only at night said their baby's first stretch went from 2-3 hours to 5 hours on the first night, and to about 6 hours after roughly a month.",
            "source_type": "blog",
            "source_url": "https://gomashiba-blog.com/ergopouch",
            "source_read_at": "2026-10-11T21:40:01.028Z"
          }
        },
        {
          "column": "Warmth rating",
          "fact": {
            "field": "TOG rating",
            "value": "The page's structured product data lists a TOG rating property with the value 1.0 TOG.",
            "stated_as": "\"name\":\"TOG Rating\",\"value\":\"1.0 TOG\"",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-1-0-tog-midnight-arrows",
            "source_read_at": "2026-10-11T21:39:45.868Z"
          }
        },
        {
          "column": "Sizes",
          "fact": {
            "field": "variants",
            "value": "The store data lists this print in two sizes, Midnight Arrows / 1.0 TOG / 0-3M and Midnight Arrows / 1.0 TOG / 3-6M.",
            "stated_as": "Cocoon Swaddle Sack 1.0 TOG Midnight Arrows",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8279850057897",
      "name": "ergoPouch Sleep Sack 2.5 TOG Sleeved",
      "url": "/products/ucp/ergopouch-com/8279850057897",
      "why": "Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.",
      "cells": [
        {
          "column": "Sleep reports",
          "fact": {
            "field": "sleep improvement",
            "value": "Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.",
            "stated_as": "Several parents reported fewer night wakes, one going from three or four wakes a night to one, and another getting a night where the baby slept through.",
            "source_type": "blog",
            "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-2-5-tog-jersey-bag-with-sleeves",
            "source_read_at": "2026-10-12T02:28:51.678Z"
          }
        },
        {
          "column": "Warmth rating",
          "fact": {
            "field": "TOG rating",
            "value": "The bag is rated 2.5 TOG (a warmth rating, not a temperature).",
            "stated_as": "2.5 TOG",
            "source_type": "guide",
            "source_url": "https://www.ergopouch.com/products/sleep-sack-2-5-tog-sleeved-daisies",
            "source_read_at": "2026-10-12T02:27:35.932Z"
          }
        },
        {
          "column": "Sizes",
          "fact": {
            "field": "sizes",
            "value": "Offered in three sizes: 3-12M, 8-24M and 2-4Y, all in the same 2.5 TOG rating and Daisies print.",
            "stated_as": "Daisies / 2.5 TOG / 3-12M",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8279850156201",
      "name": "ergoPouch Sleep Sack 2.5 TOG Sleeved Willow",
      "url": "/products/ucp/ergopouch-com/8279850156201",
      "why": "Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.",
      "cells": [
        {
          "column": "Sleep reports",
          "fact": {
            "field": "night waking",
            "value": "Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.",
            "stated_as": "Parents trialling the sack reported far fewer night wakes caused by cold, with several families going from three or four wake-ups a night down to one.",
            "source_type": "blog",
            "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-2-5-tog-jersey-bag-with-sleeves",
            "source_read_at": "2026-10-12T02:36:26.675Z"
          }
        },
        {
          "column": "Warmth rating",
          "fact": {
            "field": "TOG rating",
            "value": "The structured product data states a TOG Rating of 2.5 TOG.",
            "stated_as": "\"name\":\"TOG Rating\",\"value\":\"2.5 TOG\"",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-sleeved-willow",
            "source_read_at": "2026-10-12T02:36:07.038Z"
          }
        },
        {
          "column": "Sizes",
          "fact": {
            "field": "sizes",
            "value": "The model comes in three sizes: 3-12M, 8-24M and 2-4Y.",
            "stated_as": "\"size\":[{\"@type\":\"SizeSpecification\",\"name\":\"3-12M\"},{\"@type\":\"SizeSpecification\",\"name\":\"8-24M\"},{\"@type\":\"SizeSpecification\",\"name\":\"2-4Y\"}],\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"TOG Rating\",\"value\":\"2.5 TOG\"}]",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-sleeved-willow",
            "source_read_at": "2026-10-12T02:36:07.038Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8261736988841",
      "name": "ergoPouch Sleep Sack 2.5 TOG Willow",
      "url": "/products/ucp/ergopouch-com/8261736988841",
      "why": "Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
      "cells": [
        {
          "column": "Sleep reports",
          "fact": {
            "field": "sleep outcome",
            "value": "Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
            "stated_as": "Several testers reported their babies slept more soundly in it than in other brands they had used, with longer day naps and fewer night wakes.",
            "source_type": "blog",
            "source_url": "https://www.ergopouch.com.au/blogs/product-information/everyday-parents-review-the-premium-sleeping-bag-v-sleeping-bag",
            "source_read_at": "2026-10-12T02:28:37.687Z"
          }
        },
        {
          "column": "Warmth rating",
          "fact": {
            "field": "TOG rating",
            "value": "The page's structured data records a TOG rating of 2.5.",
            "stated_as": "\"TOG Rating\",\"value\":\"2.5 TOG\"",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/sleep-sack-2-5-tog-willow",
            "source_read_at": "2026-10-12T02:27:08.465Z"
          }
        },
        {
          "column": "Sizes",
          "fact": {
            "field": "variants",
            "value": "The store data lists three sizes under this listing, each with its own SKU.",
            "stated_as": "Willow / 2.5 TOG / 2-4Y — Willow / 2.5 TOG / 3-12M — Willow / 2.5 TOG / 8-24M",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        }
      ]
    }
  ]
}