"(be) used to" indicates that someone has adapted to a new situation. The situation was difficult or strange or awkward in some way, but then everything was okay. You can also use the verb "get" in place of the verb "be" -- get used to.
Tom is used to sleeping on the plane when he takes a long flight.
Notice that the verb "be" changes depending on the subject: I am used to..., You are used to...., He is used to..., We are used to....
Fernando is used to his new skateboard.
After "be used to," you can use a gerund or a noun. The example above uses a noun.