Svegliare vs. svegliarsi
The Italian words svegliare and svegliarsi both revolve around the concept of waking up, but they are not interchangeable. The core difference lies in whether the action is done to someone else (transitive) or to oneself (reflexive).
Svegliare
A2This is a transitive verb that means to wake someone or something up. The action is performed by a subject (a person or a thing) on a separate object (another person or thing).
La mamma sveglia i bambini ogni mattina alle sette.
(The mom wakes the children up every morning at seven.)
Il rumore del tuono mi ha svegliato.
(The sound of the thunder woke me up.)
Per favore, puoi svegliare Luca? È tardi.
(Please, can you wake Luca up? It's late.)
Non fare rumore o sveglierai il cane.
(Don't make noise or you will wake up the dog.)
Una tazza di caffè forte mi sveglia sempre.
(A strong cup of coffee always wakes me up.)
Svegliarsi
A1This is a reflexive verb that means to wake up by oneself. The subject performing the action is the same person who experiences it. It is always accompanied by a reflexive pronoun (mi, ti, si, ci, vi).
Normalmente mi sveglio molto presto.
(I normally wake up very early.)
A che ora ti sei svegliata stamattina?
(What time did you wake up this morning?)
Si è svegliato di soprassalto a causa di un brutto sogno.
(He woke up with a start because of a bad dream.)
Se non mettiamo la sveglia, non ci sveglieremo in tempo.
(If we don't set the alarm, we won't wake up in time.)
I bambini si sono svegliati e ora stanno giocando.
(The children woke up and are now playing.)
Summary
In short, use svegliare when you are waking someone or something else up. Use svegliarsi when you are talking about the act of waking up yourself. The key indicator for svegliarsi is the presence of the reflexive pronoun (mi, ti, si, etc.), which shows the action is being done to oneself.