"sleep like a rock" meaning in English

{
  "forms": [
    {
      "form": "sleeps like a rock",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "sleeping like a rock",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slept like a rock",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slept like a rock",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sleep<,,slept> like a rock"
      },
      "expansion": "sleep like a rock (third-person singular simple present sleeps like a rock, present participle sleeping like a rock, simple past and past participle slept like a rock)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Hindi translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sleep",
          "orig": "en:Sleep",
          "parents": [
            "Body",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of sleep like a log"
      ],
      "id": "en-sleep_like_a_rock-en-verb-h9hvOwtv",
      "links": [
        [
          "sleep like a log",
          "sleep like a log#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "sleep like a log"
        }
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "to sleep very well",
          "word": "dormir comme une pierre"
        },
        {
          "code": "hi",
          "lang": "Hindi",
          "roman": "ghoṛe beckar sonā",
          "sense": "to sleep very well",
          "word": "घोड़े बेचकर सोना"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "to sleep very well",
          "word": "dormir como uma pedra"
        }
      ]
    }
  ],
  "word": "sleep like a rock"
}

{
  "forms": [
    {
      "form": "sleeps like a rock",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "sleeping like a rock",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slept like a rock",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slept like a rock",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sleep<,,slept> like a rock"
      },
      "expansion": "sleep like a rock (third-person singular simple present sleeps like a rock, present participle sleeping like a rock, simple past and past participle slept like a rock)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English verbs",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with French translations",
        "Terms with Hindi translations",
        "Terms with Portuguese translations",
        "en:Sleep"
      ],
      "glosses": [
        "Synonym of sleep like a log"
      ],
      "links": [
        [
          "sleep like a log",
          "sleep like a log#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "sleep like a log"
        }
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "to sleep very well",
      "word": "dormir comme une pierre"
    },
    {
      "code": "hi",
      "lang": "Hindi",
      "roman": "ghoṛe beckar sonā",
      "sense": "to sleep very well",
      "word": "घोड़े बेचकर सोना"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "to sleep very well",
      "word": "dormir como uma pedra"
    }
  ],
  "word": "sleep like a rock"
}