我要睡觉了，晚安。

I've got to go to bed. Good night.

I'm going to bed. Good night.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
=2 要 yāo (bound form) to demand; to coerce
=2 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
=2 要 yǎo
  1. (archaic) alternative form of 偠 (yǎo)
  2. alternative form of 偠 (yǎo)
  3. used in 要褭／要袅
=3 睡觉 shuìjiào
  1. to go to bed
  2. to sleep
=3 睡觉 shuìjué
  1. (archaic, intransitive) to wake up
  2. to wake up
=4 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=4 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=4 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=4 了 liào unofficial variant of 瞭 liào
=5 晚安 wǎnān
  1. Good night!
  2. Good evening!
=5 晚安 wǎn'ān
  1. (slang, Mainland China) alternative form of 金剛烷胺 /金刚烷胺 (jīngāngwán'àn, “amantadine”)
  2. alternative form of 金剛烷胺 /金刚烷胺 (jīngāngwán'àn, “amantadine”)
  3. good night; good evening