Drift off
verb
To gradually start to sleep.
After a long day, she began to drift off on the couch.

Often appears as...
- drift off to sleep
- drift off at night
verb
To gradually move away from a particular place or thing.
The boat began to drift off from the shore.

Often appears as...
- drift off course
- drift off from shore
verb
To lose concentration or stop paying attention to something.
His mind began to drift off during the lecture.

Often appears as...
- drift off during a conversation
- drift off in thought
verb
To gradually start to sleep.
After a long day, she began to drift off on the couch.

Often appears as...
- drift off to sleep
- drift off at night
verb
To gradually move away from a particular place or thing.
The boat began to drift off from the shore.

Often appears as...
- drift off course
- drift off from shore
verb
To lose concentration or stop paying attention to something.
His mind began to drift off during the lecture.

Often appears as...
- drift off during a conversation
- drift off in thought
Definition 1 of 3

Nighttime Usage
Often used to describe the process of falling asleep at night or during normal sleeping hours.

Every night, I just lie in bed and drift off while listening to soft music.
Peaceful Transition
Implies a gentle and peaceful transition from wakefulness to sleep, without abrupt changes.

In the quiet of her room, she would drift off into a calm sleep.
Unintentional Sleep
Can suggest accidental or unplanned beginning of sleep, especially in unintended places.

He was so tired that he started to drift off in class.
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