Amybu22,
I have no wish to frighten you and can't predict how your tinnitus is going to react by not using a sound machine at night. However, most ENT Drs and Hearing Therapists/Audiologists recommend people with intrusive tinnitus use them and I agree with that, having had tinnitus for twenty years.
All I'm saying, it's not good for someone with intrusive tinnitus to sleep in a quiet room. The brain and auditory system never switches off. That's why people that are in a coma, Drs often recommend the patients' relatives etc talk to them as the person can still hear.
When we are in deep sleep, if the brain hears silence, it has the ability to increase it's own background activity. The tinnitus is generated in the part of the brain known as the limbic system, at the same time the tinnitus will also be increased making it more intrusive during our waking hours.
While the sound machine is supplying low-level sound enrichment (nature sounds) the brain's auditory receptors or gateways will not open like they would in a quiet room - in fact they'll do the opposite and close down. In doing so the tinnitus is slowly pushed into the background.
Michael
Oasis sound machines are one of the best. They have a website just google it and they can be bought at Amazon. Model S-650 is popular. You might find the articles in the links below helpful.
https://www.tinnitustalk.com/threads/an-introduction-to-tinnitus.12100/
https://www.tinnitustalk.com/threads/sound-machines-and-tinnitus.12072/