{
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  "page_id": "crib-mattress-cover-layers-and-construction",
  "url": "https://robotrunk.com/compare/want/crib-mattress-cover-layers-and-construction",
  "title": "Crib mattress cover layers and construction",
  "question": "How many layers does a crib mattress cover have, and how is it built?",
  "answer": "Naturepedic Breathable Ultra Crib Mattress Cover: The cover/pad is quilted with a 100% organic cotton fiber face over a breathable mesh layer and a 100% polyester backing. The breathable 3D airflow construction adds a layer of air between the baby and the mattress.\nNaturepedic Breathable Crib Mattress Cover: The cover's top layer is organic cotton and the bottom layer is polyester. Waterproofing is a TPU polyurethane barrier.",
  "kind": "mattress protector",
  "market": "US",
  "generated_at": "2026-10-31T08:44:11.608Z",
  "columns": [
    "Construction",
    "Waterproofing",
    "Breathability"
  ],
  "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."
  },
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      "ref": "p1.f5",
      "product": "Naturepedic Breathable Crib Mattress Cover",
      "field": "layer materials",
      "value": "The cover's top layer is organic cotton and the bottom layer is polyester.",
      "stated_as": "Top Layer: Organic cotton",
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      "source_read_at": "2026-10-14T20:08:47.220Z"
    },
    {
      "ref": "p1.f9",
      "product": "Naturepedic Breathable Crib Mattress Cover",
      "field": "waterproofing",
      "value": "Waterproofing is a TPU polyurethane barrier.",
      "stated_as": "Waterproofing: TPU polyurethane barrier",
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      "source_read_at": "2026-10-14T20:08:47.220Z"
    },
    {
      "ref": "p1.f12",
      "product": "Naturepedic Breathable Crib Mattress Cover",
      "field": "breathability",
      "value": "Air flows through the cover, which the reviewer says prevents heat buildup and helps babies regulate their temperature instead of overheating at night.",
      "stated_as": "Air flows through the cover, which the reviewer says prevents heat buildup and helps babies regulate their temperature instead of overheating at night.",
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      "source_read_at": "2026-10-15T08:12:25.993Z"
    },
    {
      "ref": "p2.f4",
      "product": "Naturepedic Breathable Ultra Crib Mattress Cover",
      "field": "cover construction",
      "value": "The cover/pad is quilted with a 100% organic cotton fiber face over a breathable mesh layer and a 100% polyester backing.",
      "stated_as": "The cover/pad is quilted with a 100% organic cotton fiber face over a breathable mesh layer and a 100% polyester backing.",
      "source_type": "review",
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      "source_read_at": "2026-10-15T09:42:41.999Z"
    },
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      "ref": "p2.f9",
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    }
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          "column": "Waterproofing",
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