Formal:
* আমি ঘুমন্ত। (Ami ghumontō.) - This is the most literal translation and is the most formal.
* আমি নিদ্রাচ্ছন্ন। (Ami nidrācchhannō.) - This means "I am drowsy" and is also quite formal.
Informal:
* আমার ঘুম আসছে। (Amar ghūm āschē.) - This means "I am feeling sleepy".
* আমি ঘুমাতে চাই। (Ami ghūmātē chai.) - This means "I want to sleep".
* আমার ঘুম পাচ্ছে। (Amar ghūm pācchē.) - This is a very casual way to say "I am sleepy".
Other options:
* আমার চোখ ঝিমঝিম করছে। (Amar chōkh jhimjhim kōrché.) - This means "My eyes are blurry" and can be used to express sleepiness.
* আমি খুব ক্লান্ত। (Ami khub klanto.) - This means "I am very tired" and can be used if you're sleepy because you're exhausted.
You can choose the best option depending on the situation and your relationship with the person you're talking to.