restless, restive, restful

Restless or restless means fidgety, agitated, or uneasy; unable to concentrate or stand still--
He is restless and full of energy; he needs something to do.
The children get restless when they stay indoors all day.

Restless also means never sleeping, stopping or standing still--
He had a restless night, but he's sleeping now.
He kept to his task with restless devotion.

Restive or restive means impatient with control, restraint, or delay; discontent--
The pupils become restive when kept after school.
The people have been restive since the announcement; they are gathered in the public square.

Restful or restful means peaceful or tranquil; giving or leading to physical ease or peace of mind--
The lake house is restful this time of year; all the vacationers are gone.
A day at home doing nothing seems restful to him; she gets bored.

Now that you know that, you can say--
"This trip was meant to be restful, but we ran into a restive group of protesters, and now we're spending a restless night."

Note--"rest less" ( two words ) means ease or peace ( rest ) in a smaller or diminished quantity ( less )--
If you would rest less, you would get more done.
Note # 2--"rest full " ( two words ) means ease or peace ( rest ) in the greatest possible measure ( full )--
He needs a long rest full of fresh air and exercise.