Learn Italian: Abbiamo freddo. Ci porti una coperta in stanza. - We are cold. Bring us a blanket to the room.

You're thinking of informal commands, where the pronoun attaches to the end of the verb (like portaci for "bring us" to a friend). However, this sentence uses a formal command, imagining you are talking respectfully to a hotel worker using Lei. For formal commands, pronouns like ci (us/to us) must always be placed before the verb.

Why is the verb porti instead of porta? Doesn't the verb portare end in -a for commands?

It ends in -a for informal (tu) commands. The formal (Lei) command uses different endings. For -are verbs like portare, the formal command ending changes to -i. So, you use porti when formally asking someone to bring you something.

Why do we say Abbiamo freddo instead of Siamo freddi?

In Italian, you don't say that you are cold; you say that you have cold. For basic physical sensations like being cold (freddo), hot (caldo), hungry (fame), or thirsty (sete), you always use the verb avere (to have) rather than essere (to be).

Why is it just in stanza instead of (in the room)?