{
  "schema_version": "compare-page.v2",
  "page_id": "innerspring-crib-mattresses-compared",
  "url": "https://robotrunk.com/compare/want/innerspring-crib-mattresses-compared",
  "title": "Innerspring crib mattresses compared",
  "question": "Which crib mattresses use innerspring coils instead of foam?",
  "answer": "Naturepedic Classic Organic Cotton Crib Mattress (MC32): The innerspring model is built on a 150-coil innerspring with organic cotton batting and a firmness support layer. Lists the innerspring 2-stage Classic at about 18 lb and notes it contains no foam of any kind, using organic cotton batting instead.\nNaturepedic Breathable Organic 2-Stage Baby Crib Mattress: The lightweight 2-stage model MC46 and the innerspring 2-stage model MC46C are both 27.25 x 51.625 x 6 inches, weighing 14 lbs and 19 lbs respectively. It contains no polyurethane foam at all, a structurally different build rather than a lower-emission version of the same foam.\nNaturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage): The innerspring version this listing sells (SKU MC47C) weighs 19 lbs.",
  "kind": "mattress",
  "market": "US",
  "generated_at": "2026-10-18T15:44:22.599Z",
  "columns": [
    "Innerspring build",
    "Foam",
    "Weight",
    "Size"
  ],
  "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.f2",
      "product": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage)",
      "field": "weight",
      "value": "The innerspring version this listing sells (SKU MC47C) weighs 19 lbs.",
      "stated_as": "Weight: 19 lbs.",
      "source_type": "guide",
      "source_url": "https://strolleria.myshopify.com/products/naturepedic-breathable-ultra-252-2-stage-natural",
      "source_read_at": "2026-10-15T08:15:17.118Z"
    },
    {
      "ref": "p1.f3",
      "product": "Naturepedic Breathable Ultra Organic 2-Stage Crib Mattress (Breathable Ultra 252 2-Stage)",
      "field": "dimensions",
      "value": "Both versions measure about 27.25 x 51.625 x 6 inches, a size designed for standard U.S. cribs and toddler beds.",
      "stated_as": "Its dimensions are approximately 27.25\" x 51.625\" x 6\", which is designed for standard U.S. cribs.",
      "source_type": "guide",
      "source_url": "https://www.naturepedic.com/products/organic-breathable-ultra-baby-crib-mattress-buy",
      "source_read_at": "2026-10-15T08:15:19.136Z"
    },
    {
      "ref": "p2.f1",
      "product": "Naturepedic Classic Organic Cotton Crib Mattress (MC32)",
      "field": "dimensions",
      "value": "The innerspring Classic fits standard cribs and toddler beds at about 27 1/4 x 51 5/8 x 6 inches.",
      "stated_as": "Fits standard size cribs - approximately 27 1/4\" x 51 5/8\" x 6\".  Also fits toddler beds.",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-14T20:08:47.220Z"
    },
    {
      "ref": "p2.f6",
      "product": "Naturepedic Classic Organic Cotton Crib Mattress (MC32)",
      "field": "weight and foam",
      "value": "Lists the innerspring 2-stage Classic at about 18 lb and notes it contains no foam of any kind, using organic cotton batting instead.",
      "stated_as": "Lists the innerspring 2-stage Classic at about 18 lb and notes it contains no foam of any kind, using organic cotton batting instead.",
      "source_type": "blog",
      "source_url": "https://empiricalmama.com/naturepedic-crib-mattress-review/",
      "source_read_at": "2026-10-15T08:37:53.249Z"
    },
    {
      "ref": "p2.f8",
      "product": "Naturepedic Classic Organic Cotton Crib Mattress (MC32)",
      "field": "construction",
      "value": "The innerspring model is built on a 150-coil innerspring with organic cotton batting and a firmness support layer.",
      "stated_as": "- 150 coil innerspring",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-14T20:08:47.220Z"
    },
    {
      "ref": "p2.f9",
      "product": "Naturepedic Classic Organic Cotton Crib Mattress (MC32)",
      "field": "weight",
      "value": "The innerspring 2-stage weighs 19 lbs.",
      "stated_as": "19 lbs",
      "source_type": "guide",
      "source_url": "https://strolleria.myshopify.com/products/naturepedic-organic-classic-crib-mattress-innerspring-2-stage",
      "source_read_at": "2026-10-15T08:37:22.738Z"
    },
    {
      "ref": "p6.f3",
      "product": "Naturepedic Breathable Organic 2-Stage Baby Crib Mattress",
      "field": "specifications",
      "value": "The lightweight 2-stage model MC46 and the innerspring 2-stage model MC46C are both 27.25 x 51.625 x 6 inches, weighing 14 lbs and 19 lbs respectively.",
      "stated_as": "MC46C\nINNERSPRING, 2-STAGE\n27.25\" x 51.625\" x 6\"\n19 lbs",
      "source_type": "guide",
      "source_url": "https://www.naturepedic.com/products/organic-breathable-baby-crib-mattress-buy",
      "source_read_at": "2026-10-15T07:56:16.278Z"
    },
    {
      "ref": "p6.f7",
      "product": "Naturepedic Breathable Organic 2-Stage Baby Crib Mattress",
      "field": "support core",
      "value": "The lightweight version uses the patented WaveSupport core; for the innerspring version retailers and an independent review give 252 coils, while the maker's FAQ says 150 coils and its 'What's Inside' list says 144 coils, so the sources disagree on the coil count.",
      "stated_as": "252 coil innerspring",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-14T20:08:47.220Z"
    },
    {
      "ref": "p6.f8",
      "product": "Naturepedic Breathable Organic 2-Stage Baby Crib Mattress",
      "field": "dimensions and weight",
      "value": "The retailer lists the mattress at approximately 27 1/4 x 51 5/8 x 6 inches and 19 lbs, fitting standard cribs and toddler beds.",
      "stated_as": "Approximately 27 1/4\" x 51 5/8\" x 6\". Fits standard size cribs and toddler beds.",
      "source_type": "guide",
      "source_url": "https://strolleria.myshopify.com/products/naturepedic-2-in-1-organic-breathable-252-2-stage-crib-mattress",
      "source_read_at": "2026-10-15T07:55:53.698Z"
    },
    {
      "ref": "p6.f11",
      "product": "Naturepedic Breathable Organic 2-Stage Baby Crib Mattress",
      "field": "construction difference",
      "value": "It contains no polyurethane foam at all, a structurally different build rather than a lower-emission version of the same foam.",
      "stated_as": "It contains no polyurethane foam at all, a structurally different build rather than a lower-emission version of the same foam.",
      "source_type": "review",
      "source_url": "https://www.highlo.com/articles/naturepedic-crib-mattress-deep-dive/",
      "source_read_at": "2026-10-15T07:57:14.434Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/7439355805770",
      "name": "Naturepedic Classic Organic Cotton Crib Mattress (MC32)",
      "url": "/products/ucp/strolleria-com/7439355805770",
      "why": "The innerspring model is built on a 150-coil innerspring with organic cotton batting and a firmness support layer.",
      "cells": [
        {
          "column": "Innerspring build",
          "fact": {
            "field": "construction",
            "value": "The innerspring model is built on a 150-coil innerspring with organic cotton batting and a firmness support layer.",
            "stated_as": "- 150 coil innerspring",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-14T20:08:47.220Z"
          }
        },
        {
          "column": "Foam",
          "fact": {
            "field": "weight and foam",
            "value": "Lists the innerspring 2-stage Classic at about 18 lb and notes it contains no foam of any kind, using organic cotton batting instead.",
            "stated_as": "Lists the innerspring 2-stage Classic at about 18 lb and notes it contains no foam of any kind, using organic cotton batting instead.",
            "source_type": "blog",
            "source_url": "https://empiricalmama.com/naturepedic-crib-mattress-review/",
            "source_read_at": "2026-10-15T08:37:53.249Z"
          }
        },
        {
          "column": "Weight",
          "fact": {
            "field": "weight",
            "value": "The innerspring 2-stage weighs 19 lbs.",
            "stated_as": "19 lbs",
            "source_type": "guide",
            "source_url": "https://strolleria.myshopify.com/products/naturepedic-organic-classic-crib-mattress-innerspring-2-stage",
            "source_read_at": "2026-10-15T08:37:22.738Z"
          }
        },
        {
          "column": "Size",
          "fact": {
            "field": "dimensions",
            "value": "The innerspring Classic fits standard cribs and toddler beds at about 27 1/4 x 51 5/8 x 6 inches.",
            "stated_as": "Fits standard size cribs - approximately 27 1/4\" x 51 5/8\" x 6\".  Also fits toddler beds.",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-14T20:08:47.220Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8189250338890",
      "name": "Naturepedic Breathable Organic 2-Stage Baby Crib Mattress",
      "url": "/products/ucp/strolleria-com/8189250338890",
      "why": "The lightweight 2-stage model MC46 and the innerspring 2-stage model MC46C are both 27.25 x 51.625 x 6 inches, weighing 14 lbs and 19 lbs respectively.",
      "cells": [
        {
          "column": "Innerspring build",
          "fact": {
            "field": "support core",
            "value": "The lightweight version uses the patented WaveSupport core; for the innerspring version retailers and an independent review give 252 coils, while the maker's FAQ says 150 coils and its 'What's Inside' list says 144 coils, so the sources disagree on the coil count.",
            "stated_as": "252 coil innerspring",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-14T20:08:47.220Z"
          }
        },
        {
          "column": "Foam",
          "fact": {
            "field": "construction difference",
            "value": "It contains no polyurethane foam at all, a structurally different build rather than a lower-emission version of the same foam.",
            "stated_as": "It contains no polyurethane foam at all, a structurally different build rather than a lower-emission version of the same foam.",
            "source_type": "review",
            "source_url": "https://www.highlo.com/articles/naturepedic-crib-mattress-deep-dive/",
            "source_read_at": "2026-10-15T07:57:14.434Z"
          }
        },
        {
          "column": "Weight",
          "fact": {
            "field": "specifications",
            "value": "The lightweight 2-stage model MC46 and the innerspring 2-stage model MC46C are both 27.25 x 51.625 x 6 inches, weighing 14 lbs and 19 lbs respectively.",
            "stated_as": "MC46C\nINNERSPRING, 2-STAGE\n27.25\" x 51.625\" x 6\"\n19 lbs",
            "source_type": "guide",
            "source_url": "https://www.naturepedic.com/products/organic-breathable-baby-crib-mattress-buy",
            "source_read_at": "2026-10-15T07:56:16.278Z"
          }
        },
        {
          "column": "Size",
          "fact": {
            "field": "dimensions and weight",
            "value": "The retailer lists the mattress at approximately 27 1/4 x 51 5/8 x 6 inches and 19 lbs, fitting standard cribs and toddler beds.",
            "stated_as": "Approximately 27 1/4\" x 51 5/8\" x 6\". Fits standard size cribs and toddler beds.",
            "source_type": "guide",
            "source_url": "https://strolleria.myshopify.com/products/naturepedic-2-in-1-organic-breathable-252-2-stage-crib-mattress",
            "source_read_at": "2026-10-15T07:55:53.698Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "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": "The innerspring version this listing sells (SKU MC47C) weighs 19 lbs.",
      "cells": [
        {
          "column": "Innerspring build",
          "fact": null
        },
        {
          "column": "Foam",
          "fact": null
        },
        {
          "column": "Weight",
          "fact": {
            "field": "weight",
            "value": "The innerspring version this listing sells (SKU MC47C) weighs 19 lbs.",
            "stated_as": "Weight: 19 lbs.",
            "source_type": "guide",
            "source_url": "https://strolleria.myshopify.com/products/naturepedic-breathable-ultra-252-2-stage-natural",
            "source_read_at": "2026-10-15T08:15:17.118Z"
          }
        },
        {
          "column": "Size",
          "fact": {
            "field": "dimensions",
            "value": "Both versions measure about 27.25 x 51.625 x 6 inches, a size designed for standard U.S. cribs and toddler beds.",
            "stated_as": "Its dimensions are approximately 27.25\" x 51.625\" x 6\", which is designed for standard U.S. cribs.",
            "source_type": "guide",
            "source_url": "https://www.naturepedic.com/products/organic-breathable-ultra-baby-crib-mattress-buy",
            "source_read_at": "2026-10-15T08:15:19.136Z"
          }
        }
      ]
    }
  ]
}