{
  "schema_version": "compare-page.v2",
  "page_id": "kids-mattresses-with-little-or-no-smell-when-unpacked",
  "url": "https://robotrunk.com/compare/want/kids-mattresses-with-little-or-no-smell-when-unpacked",
  "title": "Kids' Mattresses With Little or No Smell When Unpacked",
  "question": "Which children's mattresses have little or no smell when first unpacked?",
  "answer": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage): There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.\nHalo Essential Breathable Crib Mattress: The blog reviewer reports noticing no chemical smell or off-gassing; its claim of immediate setup disagrees with Strolleria's instruction to allow 24–48 hours for full expansion. Setup timing is disputed: The blog reports expansion to the full 4.5-inch height within minutes; Strolleria says full expansion takes 24–48 hours, so the sources disagree.",
  "kind": "mattress",
  "market": "US",
  "generated_at": "2026-10-15T10:58:36.944Z",
  "columns": [
    "Smell on unpacking",
    "Weight",
    "Setup"
  ],
  "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": "p3.f5",
      "product": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage)",
      "field": "weight and handling",
      "value": "The reviewer found it very lightweight and easy to change sheets on alone, unlike an earlier heavier non-toxic mattress that needed help.",
      "stated_as": "The reviewer found it very lightweight and easy to change sheets on alone, unlike an earlier heavier non-toxic mattress that needed help.",
      "source_type": "blog",
      "source_url": "https://www.modernnursery.com/blogs/all/naturepedic-organic-crib-mattress",
      "source_read_at": "2026-10-15T08:16:11.042Z"
    },
    {
      "ref": "p3.f10",
      "product": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage)",
      "field": "unboxing smell",
      "value": "There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.",
      "stated_as": "There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.",
      "source_type": "blog",
      "source_url": "https://greenactivefamily.com/nursery/cribs-bedding/best-naturepedic-crib-mattress/",
      "source_read_at": "2026-10-15T08:15:27.961Z"
    },
    {
      "ref": "p8.f3",
      "product": "Halo Essential Breathable Crib Mattress",
      "field": "unboxing",
      "value": "The blog reports expansion to the full 4.5-inch height within minutes; Strolleria says full expansion takes 24–48 hours, so the sources disagree.",
      "stated_as": "Arrives compressed and rolled in a manageable box; expands to its full 4.5-inch height within minutes rather than days.",
      "source_type": "blog",
      "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
      "source_read_at": "2026-10-14T12:32:20.860Z"
    },
    {
      "ref": "p8.f6",
      "product": "Halo Essential Breathable Crib Mattress",
      "field": "off-gassing",
      "value": "The blog reviewer reports noticing no chemical smell or off-gassing; its claim of immediate setup disagrees with Strolleria's instruction to allow 24–48 hours for full expansion.",
      "stated_as": "No chemical smell or off-gassing; can be set up in the nursery immediately without airing out.",
      "source_type": "blog",
      "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
      "source_read_at": "2026-10-14T12:32:20.860Z"
    },
    {
      "ref": "p8.f9",
      "product": "Halo Essential Breathable Crib Mattress",
      "field": "weight",
      "value": "Weighs just under 7 pounds, making sheet changes and flipping easy.",
      "stated_as": "Weighs just under 7 pounds, making sheet changes and flipping easy.",
      "source_type": "blog",
      "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
      "source_read_at": "2026-10-14T12:32:20.860Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8189250109514",
      "name": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage)",
      "url": "/products/ucp/strolleria-com/8189250109514",
      "why": "There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.",
      "cells": [
        {
          "column": "Smell on unpacking",
          "fact": {
            "field": "unboxing smell",
            "value": "There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.",
            "stated_as": "There was no detectable new-mattress smell on opening, which suggests little off-gassing of VOCs and matches its Greenguard Gold certification.",
            "source_type": "blog",
            "source_url": "https://greenactivefamily.com/nursery/cribs-bedding/best-naturepedic-crib-mattress/",
            "source_read_at": "2026-10-15T08:15:27.961Z"
          }
        },
        {
          "column": "Weight",
          "fact": {
            "field": "weight and handling",
            "value": "The reviewer found it very lightweight and easy to change sheets on alone, unlike an earlier heavier non-toxic mattress that needed help.",
            "stated_as": "The reviewer found it very lightweight and easy to change sheets on alone, unlike an earlier heavier non-toxic mattress that needed help.",
            "source_type": "blog",
            "source_url": "https://www.modernnursery.com/blogs/all/naturepedic-organic-crib-mattress",
            "source_read_at": "2026-10-15T08:16:11.042Z"
          }
        },
        {
          "column": "Setup",
          "fact": null
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8157328998474",
      "name": "Halo Essential Breathable Crib Mattress",
      "url": "/products/ucp/strolleria-com/8157328998474",
      "why": "The blog reviewer reports noticing no chemical smell or off-gassing; its claim of immediate setup disagrees with Strolleria's instruction to allow 24–48 hours for full expansion.",
      "cells": [
        {
          "column": "Smell on unpacking",
          "fact": {
            "field": "off-gassing",
            "value": "The blog reviewer reports noticing no chemical smell or off-gassing; its claim of immediate setup disagrees with Strolleria's instruction to allow 24–48 hours for full expansion.",
            "stated_as": "No chemical smell or off-gassing; can be set up in the nursery immediately without airing out.",
            "source_type": "blog",
            "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
            "source_read_at": "2026-10-14T12:32:20.860Z"
          }
        },
        {
          "column": "Weight",
          "fact": {
            "field": "weight",
            "value": "Weighs just under 7 pounds, making sheet changes and flipping easy.",
            "stated_as": "Weighs just under 7 pounds, making sheet changes and flipping easy.",
            "source_type": "blog",
            "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
            "source_read_at": "2026-10-14T12:32:20.860Z"
          }
        },
        {
          "column": "Setup",
          "fact": {
            "field": "unboxing",
            "value": "The blog reports expansion to the full 4.5-inch height within minutes; Strolleria says full expansion takes 24–48 hours, so the sources disagree.",
            "stated_as": "Arrives compressed and rolled in a manageable box; expands to its full 4.5-inch height within minutes rather than days.",
            "source_type": "blog",
            "source_url": "https://www.homeandtome.org/halo-essential-crib-toddler-mattress-review-the-breathable-sleep-solution-we-trust/",
            "source_read_at": "2026-10-14T12:32:20.860Z"
          }
        }
      ]
    }
  ]
}