Kanji
Your sentence
早く 寝た ほう が いい
Words in this sentence
寝る
to sleep (lying down); to go to bed; to lie in bed; to lie down; to sleep (with someone, i.e. have intercourse); to lie flat (e.g. of hair); to lie idle (of funds, stock, etc.); to ferment (of soy sauce, miso, etc.)
Ichidan verb
ほう
direction; way; side; area (in a particular direction); side (of an argument, etc.); one's part; type; category; field (of study, etc.); indicates one side of a comparison; …
Noun
いい
good; excellent; fine; nice; pleasant; agreeable; sufficient; enough; ready; prepared; …
I-adjective