覚める

1. Origins, structure, and basic meaning

• Structure: 覚める, read さめる, is an intransitive verb describing the change from sleep or a dream to wakefulness.
• Basic usage: 目が覚める means waking up, while 夢から覚める means waking from a dream.
  • 目が覚めると、窓の外はもう明るかった。

2. Common pitfalls and similar expressions

• Intransitive 覚める versus transitive 覚ます
  • 目が覚める describes the change to wakefulness, while 目を覚ます uses a transitive construction for opening one's eyes and waking up. The past of 覚める is 覚めた, and the past of 覚ます is 覚ました.