idiom > Lingering mattress
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Lingering mattress
  Explanation: Lingering: endless struggle, unable to escape. Described as seriously ill, bedridden. Also refers to indulge Nannvzhishi.
  Source: "Sung-eighth North Kingdoms" Twenty-back: "Fei Li Partial on_set_ of Health, the lingering mattress, terminal one, actually died Seoul.
No. 2
  缠绵床褥 ( chán mián chuáng rù )
  解 释 缠绵:纠缠不已,无法解脱。形容身患重病,卧床不起。也指沉溺于男女之事
  出 处 《宋宫十八朝演义》第20回:“偏李妃生起病来,缠绵床褥,一病不起,竟尔去世。”
  用 法 动宾式;作谓语、宾语;含贬义 ;指沉溺于男女之事。
  示 例 他很喜欢~