～方がいい
Use 方がいい to give advice or suggestions. Use た-form for positive advice, ない-form for negative advice.
You should [verb] / It's better to [verb]
もっと寝ねた方ほうがいいですよ。
You shouldn't [verb] / It's better not to [verb]
あまり食たべない方ほうがいいですよ。