كيس النوم والناموسية في الخيمة.

In Arabic, present-tense sentences like this often do not use a verb meaning is/are.

So:

• كيس النوم والناموسية في الخيمة literally looks like:
• the sleeping bag and the mosquito net in the tent

But it naturally means:

• The sleeping bag and the mosquito net are in the tent.

This is a very common Arabic pattern called a nominal sentence. In the present tense, Arabic usually leaves out the verb to be.

If you wanted the past, Arabic would use a verb, for example:

• كان كيس النوم والناموسية في الخيمة = The sleeping bag and the mosquito net were in the tent.

كيس النوم literally means bag of sleep.

This is an iḍāfa construction (often called a possessive or noun-link construction), where two nouns are joined:

• كيس = bag
• النوم = sleep

Together:

• كيس النوم = sleeping bag

Arabic often expresses this kind of idea with noun + noun, rather than using an adjective like English does in sleeping bag.

Because كيس النوم is an iḍāfa construction.

In an iḍāfa:

• the first noun usually does not take الـ
• the second noun shows whether the whole phrase is definite or indefinite

So:

• كيس نوم = a sleeping bag
• كيس النوم = the sleeping bag

Even though كيس has no الـ, the whole phrase is definite because النوم is definite.

Yes, النوم means sleep, and it is often used as an abstract noun.

In Arabic iḍāfa, the second noun can be definite with الـ to make the whole phrase definite. So here:

• كيس النوم = the sleeping bag

This is just the standard Arabic way to say this item. You do not need to think of it as the sleep in a very literal English way. It is simply how the compound noun is formed.

الناموسية means the mosquito net.

It comes from ناموس / بعوض-related vocabulary connected with mosquitoes, and ناموسية is the standard word for a mosquito net in many contexts.

So in this sentence:

• والناموسية = and the mosquito net

The letter و means and, and in Arabic it is written attached to the following word.

So:

• والناموسية = و + الناموسية
• meaning and the mosquito net

This is completely normal in Arabic spelling. Many short particles attach directly to the next word.

Yes.

The structure is:

• كيس النوم والناموسية = the sleeping bag and the mosquito net
• في الخيمة = in the tent

So the prepositional phrase في الخيمة applies to the whole coordinated phrase before it. In normal English wording:

• The sleeping bag and the mosquito net are in the tent.

Because Arabic commonly puts the thing being talked about first, and then gives information about its location.

So the sentence is structured like:

• [the sleeping bag and the mosquito net] [in the tent]

This is a very natural Arabic word order.

You could think of it as:

• The sleeping bag and the mosquito net — in the tent.

That is enough in Arabic to mean:

• The sleeping bag and the mosquito net are in the tent.

In fully vocalized formal Arabic, it would typically be:

• كِيسُ النَّوْمِ وَالنَّامُوسِيَّةُ فِي الخَيْمَةِ

Here is why:

• كِيسُ = nominative, because it is part of the subject
• النَّوْمِ = genitive, because it is the second part of an iḍāfa
• النَّامُوسِيَّةُ = nominative, coordinated with كيس
• الخَيْمَةِ = genitive, because it comes after the preposition في

In normal everyday writing, these short vowel endings are usually omitted.

A helpful pronunciation is:

• kīs an-nawm

Notes:

• كيس sounds like kees
• النوم is pronounced an-nawm, not fully al-nawm, because ن is a sun letter, so the l of الـ assimilates

So:

• written: النوم
• pronounced: an-nawm

A good pronunciation is:

• al-khaymah

Notes:

• خ is a throaty sound, like the ch in German Bach or Scottish loch
• ي here helps form the ay sound
• ة at the end is pronounced -ah in pause

So في الخيمة is pronounced roughly:

• fī al-khaymah

The final ة is called tāʾ marbūṭa.

It often appears at the end of many feminine nouns. In pause, it is usually pronounced like -a or -ah:

• ناموسية → nāmūsiyyah

If the word is followed by grammatical endings in fully vocalized formal Arabic, the t sound can appear more clearly, but in normal pause pronunciation it usually sounds like -ah.

It can function as a complete sentence in Arabic.

Because Arabic does not need is/are in the present tense, this is enough to say:

• The sleeping bag and the mosquito net are in the tent.

Without context, Arabic sentences like this can sometimes look phrase-like to English speakers, but here it is perfectly natural as a full statement.

Yes, Arabic allows flexibility.

For example, you could say:

• في الخيمة كيس النوم والناموسية

This would emphasize the location more, something like:

• In the tent are the sleeping bag and the mosquito net.

But the original sentence:

• كيس النوم والناموسية في الخيمة

is very natural and straightforward.

Because only the first item is كيس النوم = the sleeping bag.

Then Arabic adds another noun with و:

• كيس النوم = the sleeping bag
• والناموسية = and the mosquito net

So the sentence is not saying sleeping bags. It is listing two separate singular items joined by and.