raisyuu no ryokou no tame ni, konya ha hayame ni nidukuri wo site okimasu.

They are doing two different jobs.

• 来週の旅行 = next week’s trip / the trip next week
  • Here, the first の links 来週 and 旅行.
• 旅行のために = for the trip
  • Here, the second の links the noun 旅行 to ために.

So the whole chunk 来週の旅行のために means for next week’s trip.

Here, ために means for or for the sake of.

So:

• 来週の旅行のために = for next week’s trip

In this sentence, it gives the reason or purpose for packing tonight.

A useful pattern is:

• noun + のために = for (the sake of) a noun
• verb dictionary form + ために = in order to do...

In your sentence, it is the noun pattern.

は marks 今夜 as the topic: as for tonight.

So 今夜は has a nuance like:

• as for tonight
• tonight, at least
• tonight in particular

It can also add a slight contrast, depending on context. For example, it may imply something like I’m doing it tonight (rather than waiting until later).

Without は, 今夜に would sound unnatural here, and 今夜 by itself would be possible but less clearly marked as the topic.

早めに means a little early, relatively early, or earlier than usual.

That is different from 早く, which simply means early or quickly, depending on context.

Compare:

• 早く荷造りする = pack early / pack quickly
• 早めに荷造りする = pack a bit early, ahead of time

In this sentence, 早めに fits very well because the speaker is preparing in advance for a future trip.

Because 早め is being used adverbially here.

• 早め = an early-ish time / an earlier-than-usual timing
• 早めに = early / a bit early

The に turns it into something that modifies the verb phrase 荷造りをしておきます.

You can think of it like:

• 静か → 静かに
• 丁寧 → 丁寧に
• 早め → 早めに

〜ておく means to do something in advance or to do something and leave it done for later convenience.

So:

• 荷造りをしておきます = I’ll pack in advance
• I’ll get the packing done ahead of time

This is one of the most important grammar points in the sentence. It shows that the action is not just happening; it is being done as preparation for something later.

That fits perfectly with 来週の旅行のために.

Both are possible, but they are not exactly the same.

• 荷造りします = I will pack
• 荷造りをしておきます = I will pack in advance / get the packing done ahead of time

So the longer form adds the important nuance of preparation.

Also, 荷造り is a verbal noun, so it can combine with する:

• 荷造りする
• 荷造りをする

Both are used, and 荷造りをしておきます is a very natural way to say do the packing in advance.

Because Japanese non-past can refer to both:

• present/habitual actions, and
• future actions

So しておきます here means will do in advance.

Even though the action is in the future from the speaker’s point of view, Japanese does not need a separate future tense the way English often does.

So this sentence naturally means something like:

• I’ll pack tonight in advance for next week’s trip.

Yes. The order sounds very natural because Japanese often goes from time/topic to manner to object to verb.

So the sentence flows like this:

• for next week’s trip
• as for tonight
• a bit early
• packing
• will do in advance

This order helps the listener build the situation step by step before reaching the main verb at the end.

No. Standard Japanese normally does not use spaces like this.

It would usually be written as:

来週の旅行のために、今夜は早めに荷造りをしておきます。

The spaces in your version are just for learning purposes, to make the parts easier to see.

It is very natural.

It sounds like a polite statement meaning that the speaker is being organized and preparing ahead of time. The combination of:

• 来週の旅行のために
• 今夜は
• 早めに
• 〜ておきます

creates a very clear nuance of planned preparation.

A native speaker would easily understand it as something like:

• For next week’s trip, I’ll get my packing done early tonight.
• I’m going to pack early tonight for next week’s trip.