枕元

1. Origins, structure, and basic meaning

• Structure: 枕元 is read まくらもと and means the bedside area close to one's pillow.
• Basic usage: It is used for placing a book beside the pillow or finding an object there in the morning.

2. Common pitfalls and similar expressions

• Place where something is put
  • 枕元に置いて describes placing something beside the pillow.
• Place where something is found
  • 枕元に包みがあった indicates that a package was beside the pillow.