falling asleep; going to sleep
Refers to the act or ease of falling asleep. Often used in phrases like 寝付きがいい (falls asleep easily) or 寝付きが悪い (has trouble falling asleep).
Lately I've been having trouble falling asleep.
Using this pillow helps me fall asleep more easily.
I feel like drinking this tea helps me fall asleep more easily.
I want to improve my sleep onset by keeping a regular lifestyle.