Ben uyumadan önce başucu kitabını okumadan edemiyorum.

Yes. In Turkish, the subject pronoun is often omitted because the verb ending already shows the person.

• edemiyorum = I can’t / I’m unable
• So Ben is not strictly necessary.

Here, Ben can add:

• emphasis: I can’t help doing it
• contrast: maybe unlike someone else
• clarity in a longer context

A very natural version is simply:

• Uyumadan önce başucu kitabını okumadan edemiyorum.

It is built from:

• uyumak = to sleep
• uyu-ma-dan = without sleeping
• önce = before

So word-for-word it looks like before without sleeping, but that is not how the whole expression is understood in normal Turkish.

The pattern verb + -madan önce means:

• before doing
• before one does

So:

• uyumadan önce = before sleeping / before I go to sleep

This is a very common structure in Turkish:

• Yemek yemeden önce = before eating
• Evden çıkmadan önce = before leaving the house

Because the same form can appear in different larger structures.

By itself, -madan / -meden usually means:

• without doing

But in this sentence it appears in two different constructions:

1. uyumadan önce
   = before sleeping

   Here -madan combines with önce to make a time expression.

2. okumadan edemiyorum
   = I can’t help reading

   Here -madan is part of the idiom -madan edememek.

So the meaning comes from the whole pattern, not just from -madan alone.

This is a very common Turkish idiom:

• verb + -madan edememek

It means:

• to be unable not to do something
• to be unable to refrain from doing something
• to can’t help doing something

So:

• okumadan edemiyorum = I can’t help reading
• more literally: I can’t manage not reading

This is not a word-for-word English-style construction. It is a fixed Turkish expression.

Other examples:

• Gülmeden edemedim. = I couldn’t help laughing.
• Sormadan edemeyeceğim. = I won’t be able to resist asking.

Not in this case. This is a fixed Turkish pattern, not simple logical double negation.

The two negative-looking pieces are:

• oku-ma-dan
• ede-mi-yor-um with -eme- meaning cannot

Together they form the idiom:

• -madan edememek

The overall meaning is still negative in form but positive in effect:

• I can’t avoid reading
• therefore: I end up reading
• more naturally: I can’t help reading

So it does not mean the negatives cancel each other out.

Yes, literally it means something like:

• başucu = bedside / at one’s head
• kitabı = book

So başucu kitabı is:

• a bedside book
• a book kept near the bed for reading before sleep

It can also have a more figurative meaning in Turkish:

• a favorite go-to book
• a book someone keeps close and returns to often
• sometimes even a kind of reference favorite

In this sentence, because of uyumadan önce, the literal bedside book meaning fits very well.

Because the noun is the definite direct object of the verb.

Here is the base form:

• başucu kitabı = bedside book

When it becomes a definite object, Turkish adds the accusative ending:

• başucu kitabını = the bedside book

So the -nı here marks the object as specific/definite.

Compare:

• Kitap okuyorum. = I am reading a book / books.
• Kitabı okuyorum. = I am reading the book.

In your sentence, the speaker is talking about a specific book, so kitabını is natural.

Not by itself.

In this sentence, başucu kitabını most naturally means:

• the bedside book / the bedside book that the speaker has in mind

If you want to say my bedside book explicitly, you would usually say:

• başucu kitabımı

So:

• başucu kitabını = the bedside book
• başucu kitabımı = my bedside book

That said, Turkish sometimes leaves possession to context, so a translation may still come out as my bedside book if the situation clearly implies it.

This is a common sound change in Turkish called consonant softening.

Some nouns ending in a voiceless consonant change when a vowel-initial suffix is added:

• p → b
• t → d
• ç → c
• k → ğ / g sometimes

So:

• kitap
  • suffix → kitabı
• then with another suffix: kitabını

This happens because the suffix starts with a vowel, and Turkish often softens the final consonant in that environment.

Other examples:

• ağaç → ağacı
• kanat → kanadı
• renk → rengi

Not every word behaves the same way, but this pattern is very common.

In Turkish, the present continuous form often covers more than just something happening right this second.

Here:

• ede-miyor-um

can mean:

• something happening now
• a repeated habit
• a general personal tendency

So in this sentence it sounds like:

• I just can’t help reading it before sleeping
• It’s something I always end up doing

In English, we might use simple present for this kind of habit, but Turkish very often uses -iyor naturally in such cases.

Because the expression is built with the auxiliary-like verb etmek inside the idiom -madan edememek.

So the structure is not:

• okuyamıyorum = I can’t read

It is:

• okumadan edemiyorum = I can’t help reading

These are very different meanings.

Compare:

• Okuyamıyorum. = I am unable to read.
• Okumadan edemiyorum. = I can’t resist reading.

So edemiyorum is essential to the idiom.

Yes, Turkish word order is flexible, although some versions sound more natural than others.

Your sentence has a very natural order:

• Ben uyumadan önce başucu kitabını okumadan edemiyorum.

You could also say:

• Uyumadan önce başucu kitabını okumadan edemiyorum.

This is probably the most natural version if no emphasis on Ben is needed.

Turkish often places:

• time expressions early
• the main verb at the end

Also, the chunk okumadan edemiyorum tends to stay together because it is an idiomatic unit.

It is a postposition, which means it comes after the word or phrase it relates to.

So Turkish says:

• uyumadan önce = before sleeping

not something like English before sleeping, where before comes first.

With nouns, önce often follows the ablative case:

• dersten önce = before the lesson
• yemekten önce = before the meal

With verbs, one very common pattern is:

• verb + -madan önce

So this sentence is using a standard Turkish postpositional structure.

Yes:

• Ben = I
• uyumadan önce = before sleeping / before I go to sleep
• başucu kitabını = the bedside book
• okumadan edemiyorum = I can’t help reading

A fairly literal English gloss would be:

• I, before sleeping, cannot help reading the bedside book.

A more natural English version would be something like:

• I can’t help reading my bedside book before going to sleep.

The important thing is that Turkish builds this meaning through the idiom -madan edememek, not through a direct one-word equivalent of can’t help.