If a person decides not to use sound enrichment at night then that is fine. As I have previoulsy explained, anyone with intrusive tinnitus it is not recommended to sleep in a quiet room as the perception of the tinnitus during waking hours will usually increase. My tinnitus varies in intensity considerably from: complete silence, mild, moderate, severe and very severe. Not many people have my type of tinnitus according to my Hearing therapsist and ENT consultant. I therefore, understand why some people that have mild to moderate tinnitus choose to sleep in a quiet room, as some of the people in this thread have chosen. I believe anyone that has intrusive tinnitus wouldn't want to sleep in completely silent room.
Many people do not understand how to use sound enrichment correctly at night, or indeed, how it is supposed to work. When we are in deep sleep that is when it performs its magic. In hyperacusis, it supplies the brain and auditory system with sound enrichment, which will help to desensitize the auditory system, closing down the auditory receptors or gateways. At the same time it helps prevent the brain from increasing its own background activity and preventing the tinnitus from becoming more intrusive during waking hours.
It is for this reason some people with hearing loss, notice an increase in tinnitus because their brain has increased its background activity in order to compensate for the sounds that it is unable to hear. A hearing aid/s will usually correct this, by supplying the brain with increased ambiance (sounds) from the outside world, the brain will no longer have to compensate for this loss of hearing and thus, turn down its internal gain lowering the tinnitus.
Although a sound machine can take a little while to get used to, if a person finds it annoying and interfers with their sleep, the usual reason is because the volume is set too high or they are using the wrong type of sound enrichment. Music for instance is not advised because it draws attention to itself. Low level nature sounds are consider the best. If it is set to a low volume level it shouldn't interfere with sleep.
I have spoken to many people who have habituated to tinnitus and stopped using sound enrichment at night, only to find, over time the tinnitus gradually becomes more intrusive. This will not happen in every case as we are all different.
Michael