It is better to...
This expression suggests making a recommendation or advice.
Examples
水をたくさん飲んだほうがいい。
It is better to drink a lot of water.
早く寝たほうがいい。
It is better to go to bed early.
定期的に医者に行ったほうがいい。
It is better to see the doctor regularly.
Quick check
早く寝___ほうがいい。