A bebê ficou no colo da mãe e logo adormeceu depois da mamadeira.

This is a very common question.

Traditionally, bebê is often treated as a masculine noun in Portuguese, so o bebê is the safest standard form, even if the baby is a girl.

But in Brazilian Portuguese, many speakers also say a bebê when they are clearly referring to a female baby. So in real life, both can appear:

• o bebê = neutral/default, or standard grammar choice
• a bebê = common in Brazil for a baby girl

So this sentence is using a bebê to show that the baby is female.

Here ficou is the past tense of ficar, and it means stayed or remained.

So A bebê ficou no colo da mãe means the baby stayed in or remained in her mother’s lap/arms.

That is important because ficar has many meanings in Portuguese, such as:

• stay/remain
• be located
• become
• end up

In this sentence, it is clearly the stay/remain meaning.

Colo is a very common word in Portuguese, especially with babies and children.

No colo da mãe usually means:

• in the mother’s lap
• in the mother’s arms
• being held by the mother

With babies, colo is often broader than just lap. It can suggest the baby is being cuddled or held close against the mother.

So this is a very natural expression in Brazilian Portuguese.

These are contractions, which are extremely common in Portuguese.

• no = em + o
• da = de + a

So:

• no colo = em o colo → no colo
• da mãe = de a mãe → da mãe

Portuguese normally contracts these combinations, so using the full separate forms would sound wrong in normal speech.

Because Portuguese often leaves out the subject pronoun when it is already clear.

In A bebê ficou no colo da mãe e logo adormeceu, the subject of adormeceu is still a bebê.

Portuguese does this all the time:

• Ela ficou no colo da mãe e logo adormeceu
• A bebê ficou no colo da mãe e logo adormeceu

Both are possible, but the second one is more natural here because the subject has already been introduced.

Here logo means soon, shortly, or before long.

So logo adormeceu means:

• soon fell asleep
• quickly fell asleep

It does not have anything to do with the English word logo.

In Brazilian Portuguese, logo is a very common adverb for something that happens soon after something else.

Because adormecer and dormir are close, but not identical.

• adormecer = to fall asleep
• dormir = to sleep

So:

• logo adormeceu = she soon fell asleep
• logo dormiu = she soon slept, which is less precise in this context

Since the sentence is talking about the moment the baby went from awake to asleep, adormeceu is the better verb.

In Brazilian Portuguese, mamadeira usually means baby bottle.

But depending on the context, it can also refer to the baby’s bottle-feeding, meaning the milk the baby drank from the bottle.

So depois da mamadeira can mean:

• after the bottle
• after bottle-feeding
• after having her bottle

In this sentence, it most likely means after drinking from the bottle, not just after the bottle existed nearby.

Because Portuguese often uses definite articles in places where English does not.

So depois da mamadeira literally has:

• depois de = after
• a mamadeira = the bottle

Together:

• depois da mamadeira = after the bottle / after the feeding

This sounds natural in Portuguese because the bottle-feeding is treated as a specific, understood event in the situation.

They are in the preterite, which is used for completed actions in the past.

This sentence tells a sequence of events:

1. the baby stayed in her mother’s lap/arms
2. then she fell asleep

So the preterite is the natural choice:

• ficou
• adormeceu

If you used the imperfect instead, it would sound more habitual or descriptive:

• A bebê ficava no colo da mãe e logo adormecia depois da mamadeira.

That would suggest something like This used to happen regularly rather than This happened once.