Aufwachen vs. wecken vs. aufwecken
The German verbs aufwachen, wecken, and aufwecken all revolve around the concept of waking from sleep. The key difference lies in whether someone wakes up on their own or if someone else causes them to wake up.
Aufwachen
A1This is an intransitive, separable verb meaning to wake up on one's own. The person who was sleeping is the subject of the sentence, and there is no direct object. It describes the act of transitioning from sleep to wakefulness without external intervention.
Ich wache normalerweise um 7 Uhr auf.
(I normally wake up at 7 o'clock.)
Sie ist mitten in der Nacht aufgewacht.
(She woke up in the middle of the night.)
Bist du schon aufgewacht, als ich anrief?
(Had you already woken up when I called?)
Er muss endlich aufwachen und die Realität sehen.
(He finally has to wake up and see reality.)
Wecken
A2This is a transitive verb meaning to wake someone up. It describes the action of causing someone to stop sleeping. The subject is the person or thing doing the waking, and it requires a direct object (the person being woken up). It can also be used figuratively to mean to awaken or to arouse feelings or interests.
Der Wecker weckt mich jeden Morgen.
(The alarm clock wakes me up every morning.)
Meine Mutter hat mich sanft geweckt.
(My mother woke me up gently.)
Bitte weck das Baby nicht.
(Please don't wake the baby.)
Diese Musik weckt alte Erinnerungen in mir.
(This music awakens old memories in me.)
Aufwecken
B1This is a transitive, separable verb that is largely a synonym for wecken. It also means to wake someone up. The subject performs the action on an object. While often interchangeable with wecken, aufwecken is used almost exclusively for waking someone from actual sleep and can sometimes imply a more deliberate or complete action.
Kannst du mich morgen früh um sechs Uhr aufwecken?
(Can you wake me up tomorrow morning at six o'clock?)
Der Lärm von der Straße hat uns alle aufgeweckt.
(The noise from the street woke us all up.)
Er weckt seinen Sohn für die Schule auf.
(He wakes his son up for school.)
Ich wollte dich nicht aufwecken, du hast so friedlich geschlafen.
(I didn't want to wake you up, you were sleeping so peacefully.)
Summary
In short, aufwachen is what you do yourself (e.g., I wake up). Wecken and aufwecken are what you do to someone else (e.g., The alarm wakes me up). Wecken and aufwecken are mostly interchangeable when talking about waking a person from sleep, but wecken also has a broader, figurative meaning of to awaken feelings or memories, which aufwecken does not.