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Prepositions after verbs

Wake up from, in, at, or by

Different prepositions after wake up describe the cause, place, time, or deadline connected with waking.

Quick answer

How do prepositions work with wake up?

Use wake up from for dreams, sleep, or unconsciousness. Use wake up in for a place, wake up at for a time, and wake up by for a deadline or method.

wake up from a nightmare
wake up in a hotel room
wake up at 6 a.m.
wake up by seven

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
wake up from + sleep/dream

Leaving a sleeping or unconscious state

From introduces the state or experience that ends.

She suddenly woke up from a deep sleep.
2
wake up in + place

Describing location after waking

In introduces the place where someone wakes up.

He woke up in the back seat of the car.
3
wake up at + time

Giving the exact waking time

At is used with clock times.

I usually wake up at 5:30.
4
wake up by + deadline/method

Talking about a latest time or cause

By can mean before a deadline or because of something.

Please wake up by six tomorrow.
She was woken up by loud music outside.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
wake up from
He woke up from a strange dream.
leave a sleeping or unconscious state
wake up in
She woke up in hospital.
state the place where waking happened
wake up at
I woke up at dawn.
give the time of waking
wake up by
They woke up by the sound of thunder.
show cause or latest acceptable time

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using from for a place

Use in with locations.

✕ She woke up from a small apartment. ✓ She woke up in a small apartment.

Using at with dreams

From is used for dreams or sleep.

✕ He woke up at a nightmare. ✓ He woke up from a nightmare.

Confusing by and at

At gives an exact time; by means no later than.

✓ Wake up at 7:00 if you want an exact time.

Forgetting that by can show cause

By may introduce the thing that caused waking.

✓ I was woken up by the alarm.

Quick practice

Choose the expression that matches the intended meaning.

1. She woke up ___ a loud crash outside.
2. I usually wake up ___ 6:15 on weekdays.
3. He woke up ___ a terrible dream.

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Frequently asked questions

Can I say wake up in the morning?

Yes. In the morning is a time expression separate from the verb pattern.

What is the difference between at and by?

At gives an exact time. By means before or no later than a time.

Is woken up by correct?

Yes. It is common in passive structures describing the cause of waking.

wade, through, wade, into wait for, in, on, at or till? walk into, in, to, through or on? wander through, around, into, in or from? "want for", "want from" or "want in"? "warn of" or "warn against"? "wash with", "wash in" or "wash over"? "waste on" or "waste in"? watch for, in, on, from or with? "wave at" or "wave to"? "weaken by", "weaken to" or "weaken of"? "wear by", "wear in" or "wear on"?

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