冬眠

1. Origins, structure, and basic meaning

• Structure: 冬眠 is read as とうみん and is a noun and する verb for hibernation, a winter state in which certain animals greatly reduce their activity.
• Basic usage: A research topic appears in 動物の冬眠, while awakening after it appears in 冬眠から目を覚ます.

2. Common pitfalls and similar expressions

• A seasonal biological state
  • It is more than simply sleeping for a long time in winter; it is a way certain animals pass the cold season.
• Difference from 睡眠
  • 睡眠 is ordinary sleep in people or animals, whereas 冬眠 is tied to winter and seasonal survival.