昼寝

1. Origins, structure, and basic meaning

• Structure: 昼寝 (ひるね) combines daytime 昼 and sleep 寝 to name a daytime nap.
• Basic usage: 昼寝 is the noun for a nap taken during the day, and it combines with する in forms such as 昼寝している to express the ongoing action.

2. Common pitfalls and similar expressions

• Noun and する construction
  • It is distinct from a full night's sleep or mere rest.