惰眠

1. Origins, structure, and basic meaning

• Structure: 惰眠(だみん) is a noun for idle slumber and can also figuratively describe an apathetic state.
• Basic usage: It portrays sleeping late on a day off or spending a long period without active engagement.

2. Common pitfalls and similar expressions

• Combination with むさぼる
  • 惰眠をむさぼる describes indulging in idle sleep.
  • Whereas 睡眠 is neutral about sleep, 惰眠 carries an evaluation of laziness.
• A social metaphor
  • 惰眠から目を覚ます can figuratively mean emerging from apathy and beginning to act.
  • In a context of citizens demanding reform, the focus is a change in attitude rather than actual sleep.