{
  "schema_version": "compare-page.v2",
  "page_id": "sleep-sacks-and-baby-overheating",
  "url": "https://robotrunk.com/compare/want/sleep-sacks-and-baby-overheating",
  "title": "Sleep sacks and baby overheating",
  "question": "Can a baby sleep sack cause a baby to overheat?",
  "answer": "ergoPouch Cocoon Swaddle Sack: A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating. The page states the product is 0.2 TOG. The same round-up notes the correct TOG must be chosen for the season and that swaddles are only useful for a short newborn phase, performing similarly to other zip swaddles.\nergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag: The store page's structured product data records a TOG Rating of 3.5 TOG for this product. Testers of the 3.5 TOG reported their babies slept through cold nights that had previously woken them from being cold.",
  "kind": "sleep sack",
  "market": "US",
  "generated_at": "2026-10-16T13:41:26.042Z",
  "columns": [
    "TOG rating",
    "Warmth in use",
    "Arm position",
    "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.f1",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag",
      "field": "how it is worn",
      "value": "The Cocoon Swaddle Sack can be worn three ways - arms in, hands up or arms out - and is marketed as growing with the baby's startle reflex.",
      "stated_as": "One swaddle, 3 ways to wear - arms in, hands up, or arms out. The only swaddle to grow with your baby's startle reflex.",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p2.f2",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag",
      "field": "TOG rating",
      "value": "The store page's structured product data records a TOG Rating of 3.5 TOG for this product.",
      "stated_as": "\"name\":\"TOG Rating\",\"value\":\"3.5 TOG\"",
      "source_type": "guide",
      "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-3-5-tog-oatmeal-marle",
      "source_read_at": "2026-10-12T00:03:03.939Z"
    },
    {
      "ref": "p2.f6",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag",
      "field": "warmth in cold rooms",
      "value": "Testers of the 3.5 TOG reported their babies slept through cold nights that had previously woken them from being cold.",
      "stated_as": "Testers of the 3.5 TOG reported their babies slept through cold nights that had previously woken them from being cold.",
      "source_type": "blog",
      "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-3-5-cocoon-swaddle-bag",
      "source_read_at": "2026-10-12T00:03:19.892Z"
    },
    {
      "ref": "p2.f10",
      "product": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag",
      "field": "sizes offered",
      "value": "The 3.5 TOG Oatmeal Marle is listed in four sizes: 0000, 0-3M, 3-6M and 6-12M.",
      "stated_as": "Oatmeal Marle / 3.5 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.f5",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "TOG rating",
      "value": "The page states the product is 0.2 TOG.",
      "stated_as": "0.2 TOG",
      "source_type": "guide",
      "source_url": "https://www.ergopouch.com/products/cocoon-swaddle-sack-0-2-tog-starbeam",
      "source_read_at": "2026-10-11T21:56:47.147Z"
    },
    {
      "ref": "p3.f8",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "warm room use",
      "value": "A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating.",
      "stated_as": "A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating.",
      "source_type": "review",
      "source_url": "https://www.goodto.com/reviews/baby-products/ergopouch-cocoon-swaddle-bag-review",
      "source_read_at": "2026-10-11T21:56:59.183Z"
    },
    {
      "ref": "p3.f11",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "how it is worn",
      "value": "It is designed to be worn three ways: arms in, hands up, or arms out.",
      "stated_as": "One swaddle, 3 ways to wear - arms in, hands up, or arms out.",
      "source_type": "listing",
      "source_url": "https://ergopouch-us.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:22.303Z"
    },
    {
      "ref": "p3.f12",
      "product": "ergoPouch Cocoon Swaddle Sack (the UK maker page calls it Cocoon Swaddle Bag)",
      "field": "limitations",
      "value": "The same round-up notes the correct TOG must be chosen for the season and that swaddles are only useful for a short newborn phase, performing similarly to other zip swaddles.",
      "stated_as": "The same round-up notes the correct TOG must be chosen for the season and that swaddles are only useful for a short newborn phase, performing similarly to other zip swaddles.",
      "source_type": "review",
      "source_url": "https://www.mumsnet.com/reviews/swaddles",
      "source_read_at": "2026-10-11T21:57:18.713Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "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": "A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating.",
      "cells": [
        {
          "column": "TOG rating",
          "fact": {
            "field": "TOG rating",
            "value": "The page states the product is 0.2 TOG.",
            "stated_as": "0.2 TOG",
            "source_type": "guide",
            "source_url": "https://www.ergopouch.com/products/cocoon-swaddle-sack-0-2-tog-starbeam",
            "source_read_at": "2026-10-11T21:56:47.147Z"
          }
        },
        {
          "column": "Warmth in use",
          "fact": {
            "field": "warm room use",
            "value": "A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating.",
            "stated_as": "A tester used it in a warm maternity ward and found the lightweight 0.2 TOG kept the baby snug without overheating.",
            "source_type": "review",
            "source_url": "https://www.goodto.com/reviews/baby-products/ergopouch-cocoon-swaddle-bag-review",
            "source_read_at": "2026-10-11T21:56:59.183Z"
          }
        },
        {
          "column": "Arm position",
          "fact": {
            "field": "how it is worn",
            "value": "It is designed to be worn three ways: arms in, hands up, or arms out.",
            "stated_as": "One swaddle, 3 ways to wear - arms in, hands up, or arms out.",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        },
        {
          "column": "Sizes",
          "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"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "ergopouch-com",
        "display_name": "ergopouch.com"
      },
      "product_id": "gid://shopify/Product/8279849861289",
      "name": "ergoPouch Cocoon Swaddle Sack / Cocoon Swaddle Bag",
      "url": "/products/ucp/ergopouch-com/8279849861289",
      "why": "The store page's structured product data records a TOG Rating of 3.5 TOG for this product.",
      "cells": [
        {
          "column": "TOG rating",
          "fact": {
            "field": "TOG rating",
            "value": "The store page's structured product data records a TOG Rating of 3.5 TOG for this product.",
            "stated_as": "\"name\":\"TOG Rating\",\"value\":\"3.5 TOG\"",
            "source_type": "guide",
            "source_url": "https://ergopouch-us.myshopify.com/products/cocoon-swaddle-sack-3-5-tog-oatmeal-marle",
            "source_read_at": "2026-10-12T00:03:03.939Z"
          }
        },
        {
          "column": "Warmth in use",
          "fact": {
            "field": "warmth in cold rooms",
            "value": "Testers of the 3.5 TOG reported their babies slept through cold nights that had previously woken them from being cold.",
            "stated_as": "Testers of the 3.5 TOG reported their babies slept through cold nights that had previously woken them from being cold.",
            "source_type": "blog",
            "source_url": "https://www.ergopouch.com.au/blogs/product-information/parents-review-the-3-5-cocoon-swaddle-bag",
            "source_read_at": "2026-10-12T00:03:19.892Z"
          }
        },
        {
          "column": "Arm position",
          "fact": {
            "field": "how it is worn",
            "value": "The Cocoon Swaddle Sack can be worn three ways - arms in, hands up or arms out - and is marketed as growing with the baby's startle reflex.",
            "stated_as": "One swaddle, 3 ways to wear - arms in, hands up, or arms out. The only swaddle to grow with your baby's startle reflex.",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        },
        {
          "column": "Sizes",
          "fact": {
            "field": "sizes offered",
            "value": "The 3.5 TOG Oatmeal Marle is listed in four sizes: 0000, 0-3M, 3-6M and 6-12M.",
            "stated_as": "Oatmeal Marle / 3.5 TOG / 6-12M",
            "source_type": "listing",
            "source_url": "https://ergopouch-us.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:22.303Z"
          }
        }
      ]
    }
  ]
}