There are a variety of devices designed to produce a relaxing sound, to distract from tinnitus, as you are trying to get off to sleep. Most are controlled by a timer which is set to switch OFF the sound after a suitable period to avoid disturbing further sleep. All can be used with earphones or an under-pillow speaker so that a sleeping partner is not disturbed.
Bedside tinnitus maskers are a source of different sounds which are known to assist with sleep. Most devices have a selection of 8 or more types of sound.
Tablet computers and smart phones can download Apps with a much larger selection of sounds. They are more easily set up for your needs and will travel with you.