Ask anyone with tinnitus when it bothers them most and the answer is almost always the same. At night, in a quiet room, with nothing else to think about.

Nothing about the tinnitus has changed between 3pm and 11pm. Two other things have.

The competing sound has gone

During the day your auditory environment is full. Traffic, conversation, appliances, air conditioning. Your tinnitus is still there, but it is one signal among many, and the brain is not paying it much attention.

In a quiet bedroom that competition disappears. The tinnitus does not get louder in absolute terms. It simply becomes the loudest thing available, and it takes up the space everything else used to occupy.

Your nervous system is not busy

The second factor matters more. During the day you are occupied. At night, lying still with nothing to do, attention has nowhere to go except inward.

If the brain has classified your tinnitus as a threat, and it usually has by the time someone seeks help, that quiet is when it monitors it hardest. You check whether it is still there. It is. You check whether it is worse. Now that you are checking, it seems so.

That loop is the actual problem, and it is what our programs are built to interrupt.

What actually helps

Add sound, but do not drown it out. A fan, a sound machine or an app at a level just below your tinnitus gives the brain something else to work with. Set it loud enough to mask the tinnitus completely and you prevent habituation, which is the opposite of what you want.Keep a consistent bedtime. Poor sleep makes tinnitus louder, louder tinnitus makes sleep worse. Breaking that cycle at the sleep end is often easier than at the tinnitus end.Stop checking. This is harder than it sounds and it is exactly what the counselling side of a program teaches. Monitoring is what keeps the signal flagged as important.Deal with the stress, not just the sound. If you are lying awake at 2am running through tomorrow, the tinnitus is a passenger rather than the driver.

The wider point

The fact that tinnitus behaves differently depending on your environment and your attention tells you something important. The sound is not fixed. What changes is how much of your attention it commands, and that is genuinely trainable.

That is the whole principle behind Tinnitus Retraining Therapy, and it is why sleep is usually the first thing to improve on a program, often within weeks.