אחרי שאני מסדרת את הסדין ואת הכרית, אני יושבת על המיטה וקוראת קצת.

Those are present-tense feminine singular forms.

This tells you the speaker is female:

• מסדרת = arranging / tidying
• יושבת = sitting
• קוראת = reading

If the speaker were male, you would usually get:

• מסדר
• יושב
• קורא

Hebrew present tense agrees with the subject in gender and number, so this is one of the first things learners notice.

The ש introduces a subordinate clause. In this pattern, Hebrew usually says:

• אחרי ש... = after ...

So:

• אחרי שאני מסדרת = after I arrange / after I am arranging

Here שאני is really:

• ש
  • אני

A very common Hebrew structure is:

• לפני ש... = before ...
• אחרי ש... = after ...
• כש... = when ...

So the sentence starts with a time clause: After I arrange the sheet and the pillow...

Hebrew often uses the present tense for:

• habitual actions
• routines
• general descriptions of what someone does

So this sentence sounds like a routine or repeated action:

• After I arrange the sheet and the pillow, I sit on the bed and read a little.

It is not necessarily happening right this second. It can mean this is what I usually do.

If you wanted a completed past action, Hebrew would look different, for example:

• אחרי שסידרתי את הסדין ואת הכרית, ישבתי על המיטה וקראתי קצת.
• After I arranged the sheet and the pillow, I sat on the bed and read a little.

In Hebrew, את marks a definite direct object.

So:

• מסדרת את הסדין = arranging the sheet
• ואת הכרית = and the pillow

You use את when the direct object is definite, for example with:

• ה־ (the)
• a name
• a possessive

Important: this את is not the word for you. It is a grammatical marker.

Because there are two direct objects here, Hebrew repeats it:

• את הסדין ואת הכרית

That is very normal.

The prefix ה־ is the Hebrew definite article, meaning the.

So:

• סדין = a sheet

• הסדין = the sheet

• כרית = a pillow

• הכרית = the pillow

• מיטה = a bed
• המיטה = the bed

Since the meaning has already been given, the learner may notice that Hebrew attaches the directly to the noun instead of writing it as a separate word.

Because על means on, while ב means in.

So:

• יושבת על המיטה = sitting on the bed
• שוכבת במיטה = lying in bed

Hebrew often makes this distinction clearly:

• על המיטה = on top of the bed
• במיטה = in bed, under the covers / in the bed as a resting place

In this sentence, the person is sitting on the bed, so על is the natural choice.

Hebrew often repeats the subject pronoun for clarity, especially when moving from one clause to another:

• אחרי שאני מסדרת...
• אני יושבת...

In some contexts, Hebrew can omit pronouns, but in the present tense the pronoun is often useful because present-tense forms do not always make the subject completely clear by themselves.

So repeating אני sounds natural and clear here.

קצת means a little, a bit, or for a little while, depending on context.

In:

• קוראת קצת

it most naturally means:

• I read a little
• I read for a bit

It softens the action and makes it sound brief or limited.

You will see קצת used a lot in everyday Hebrew:

• אני עייפה קצת = I’m a little tired
• חכי קצת = wait a bit
• אני יודע קצת עברית = I know a little Hebrew

Because the second verb is simply joined to the first one with ו־ (and), and the subject is understood to be the same.

So:

• אני יושבת על המיטה וקוראת קצת means
• I sit on the bed and read a little

Hebrew does not need to repeat אני there, although in some cases it could be added for emphasis:

• אני יושבת על המיטה ואני קוראת קצת

That version is possible, but less smooth here unless you want special emphasis.

מסדרת comes from the root ס־ד־ר, which has to do with arranging, ordering, organizing.

Related words include:

• סדר = order
• לסדר = to arrange / organize / tidy
• מסדרת = arranging / tidying up

The verb is in the pi'el pattern:

• masculine singular present: מסדר
• feminine singular present: מסדרת

Learners often notice the ־ת ending in the feminine singular present form.

It depends on context.

With bed-related objects like the sheet and the pillow, לסדר often means something like:

• arrange
• straighten
• tidy
• make, as in make the bed

So in natural English, a person might say:

• After I straighten the sheet and the pillow...
• After I make the bed...

But the Hebrew itself is more literally about arranging/straightening those items.

Because Hebrew nouns have grammatical gender, and it is something you usually have to learn with each noun.

In this sentence:

• סדין is masculine
• כרית is feminine
• מיטה is feminine

That matters because adjectives and some verb forms can agree with noun gender in Hebrew.

A useful thing to remember:

• the ending ־ית often appears in feminine nouns, as in כרית
• the ending ־ה often appears in feminine nouns, as in מיטה

But these are patterns, not absolute rules.

Yes, to some extent.

The original sentence starts with the time clause:

• אחרי שאני מסדרת את הסדין ואת הכרית, אני יושבת על המיטה וקוראת קצת.

You could also put the main clause first:

• אני יושבת על המיטה וקוראת קצת אחרי שאני מסדרת את הסדין ואת הכרית.

That is grammatical, but it gives the sentence a slightly different rhythm and focus. The original version is very natural because it sets up the sequence first: after X, I do Y.

The comma is natural and standard here because the sentence begins with a subordinate clause:

• אחרי שאני מסדרת את הסדין ואת הכרית, אני יושבת על המיטה וקוראת קצת.

The comma helps separate:

1. the time clause
2. the main clause

In informal writing, people are sometimes inconsistent with commas, but in standard written Hebrew this comma is a good choice.

It would change the present-tense verb forms to masculine singular:

• אחרי שאני מסדר את הסדין ואת הכרית, אני יושב על המיטה וקורא קצת.

Changes:

• מסדרת → מסדר
• יושבת → יושב
• קוראת → קורא

The nouns stay the same; only the verb forms change to match the speaker.