A la nit miro el sostre una estona abans de dormir.

A la nit is the normal Catalan way to say at night / in the evening-night period in this kind of sentence.

Even though it looks like at the night word-for-word, you should learn it as a fixed time expression:

• al matí = in the morning
• a la tarda = in the afternoon
• a la nit = at night

So in Catalan, a + article + part of the day is very common.

Catalan often leaves out the subject pronoun when it is clear from the verb ending.

• miro = I look / I watch
• The ending -o already tells you the subject is I

So:

• miro el sostre = I look at the ceiling
• jo miro el sostre is also possible, but jo is usually added only for emphasis, contrast, or clarity.

For example:

• Jo miro el sostre, però ella llegeix. = I look at the ceiling, but she reads.

Here miro comes from mirar, which usually means to look at or to watch.

In this sentence, miro el sostre means I look at the ceiling.

A useful contrast:

• mirar = to look at / watch
• veure = to see

So:

• Miro el sostre = I deliberately look at the ceiling
• Veig el sostre = I see the ceiling

Catalan often uses mirar + direct object without needing a separate word for at, unlike English.

Because Catalan usually says mirar + direct object.

So:

• miro el sostre = literally I look the ceiling, but naturally it means I look at the ceiling

English needs at, but Catalan normally does not.

Be careful:

• mirar el sostre = correct
• mirar al sostre would usually sound wrong in standard Catalan for this meaning

Yes, the definite article is normal here.

• el sostre = the ceiling

Catalan often uses articles in places where English may or may not use them, and in this sentence the article is expected.

So:

• miro el sostre = I look at the ceiling

Leaving out el would sound unnatural here.

Una estona means for a while or for some time.

It is a very common expression:

• He esperat una estona. = I waited for a while.
• Llegeixo una estona. = I read for a while.

In your sentence:

• miro el sostre una estona = I look at the ceiling for a while

It expresses a short, indefinite period of time.

Because it is functioning as a time expression, similar to for a while in English.

The structure is:

• miro el sostre = I look at the ceiling
• una estona = for a while
• abans de dormir = before sleeping / before going to sleep

So the full sentence builds naturally like this:

• At night, I look at the ceiling
• for a while
• before sleeping

Catalan word order is fairly flexible, but this order sounds natural and clear.

After abans when followed by a verb, Catalan uses de + infinitive.

So:

• abans de dormir = before sleeping / before going to sleep
• abans de menjar = before eating
• abans de sortir = before leaving

This is an important pattern:

• abans + noun: abans de la classe = before class
• abans + infinitive: abans de dormir = before sleeping

So the de is required here.

In this sentence, abans de dormir most naturally means before going to sleep or before falling asleep, even though the verb itself is simply to sleep.

This is common in Catalan. The exact English translation depends on context.

So:

• abans de dormir can be understood as before sleeping
• but in this sentence, idiomatic English is often before going to sleep

Yes. Catalan allows some flexibility in word order, especially with time expressions.

For example:

• A la nit miro el sostre una estona abans de dormir.
• Miro el sostre una estona abans de dormir, a la nit.
• Abans de dormir, a la nit, miro el sostre una estona.

But the original version sounds very natural because it starts with the broad time setting A la nit, then gives the action.

So the original order is a good, standard way to say it.

Not exactly, although they are similar.

• a la nit usually means at night as a time frame
• de nit often means at night / by night / during the night, sometimes with a slightly more adverbial feel

In many contexts they overlap, but a la nit is especially common when talking about a habitual action at that time:

• A la nit llegeixo. = At night I read.

So in your sentence, A la nit is a very natural choice.

A rough pronunciation for an English speaker could be:

ah luh NEET MEE-roh ul SOS-truh OO-nuh us-TOH-nuh uh-BAHNZ duh dur-MEER

A few helpful points:

• nit sounds like neet
• miro = MEE-ro
• sostre has a cluster that may feel tricky; approximately SOS-truh
• abans has the stress on the second syllable: uh-BAHNS
• dormir ends with stress on -mir: dur-MEER

This is only approximate, but it can help you get started.