Repose

n.
(1) The act of resting or the state of being at rest.
(2) Freedom from worry; peace of mind.
(3) Calmness; tranquillity.

v.
(1) To place (trust, for example): reposed all his hopes in the new cure.
(2) To lay (oneself) down.
(3) To rest or relax (oneself).