Getting Back To Sleep
Ian Paterson, Vice President, Tinnitus Association of Victoria
Sleep continues to be a major problem for many people with tinnitus. The most common problem is that they wake during the night and then cannot get back to sleep, often blaming the tinnitus for initially waking them and then preventing them from getting back to sleep. Although tinnitus can cause a person to wake from sleep, there are many other more obvious factors that can cause this, such as irregular hours, having something on your mind, poor sleep habits etc. To understand what is happening when we are awakened from sleep and how to get back to sleep, we must understand our bio-clock or 'circadian rhythm'.
Humans, like all other animals, are biologically programmed to follow a 24 hour cycle that is linked to sunlight and darkness. This rhythm regulates natural chemicals that rise and fall within our bodies throughout the 24 hour period governing periods of alertness and sleep, as well as those states between the two.
Although humans have a circadian rhythm that dictates that we will be more alert during the day, and more likely to sleep during the hours of darkness, we all have minor variations that manifest themselves in some people being more a 'morning person' or a 'night owl' etc. These minor variations are not important. However, what is important is maintaining a regular routine in our 24 period. If you regularly go to bed at 10.00 p.m. each night, but decide to stay up until 3.00 a.m. for the next few nights, you are disturbing your natural rhythm and it is highly likely that you would not function at peak performance for the following few days. Part of any sleep management program dictates that you should go to bed when you are tired and get up at about the same time each day. This maintains your circadian rhythm.
Part of our circadian rhythm is that we have a wave cycle happening throughout the day and night that allows our body to have periods of less intense alertness during the day, and periods of deeper rest during the night. Without this natural cycle occurring, we would be like a motor that is running on full throttle all the time and would soon 'burn-out'. At night this cycle continues, causing us to go from periods of rest to actually falling asleep. These cycles happen approximately every 90 to 120 minutes and can be likened to waves that form in the ocean, they arrive on the beach at more or less regular intervals, and, when the wave of deep rest arrives, we are more likely to fall asleep.
When some people wake during the night, they make a conscious effort to fall back to sleep immediately.
When this does not happen, frustration and anxiety sets in and the more they try to get back to sleep, the more likely they are to toss and turn all night and NOT go back to sleep. The waves of deep rest that will lead to sleep will happen regularly throughout the night in the same way as waves reaching the beach.
Surfboard riders can paddle as fast as they like between waves, but they will not go anywhere until a wave appears. In the same way, if you wake and your wave of deep rest is not upon you, you are better to physically and mentally relax, clear the mind and wait until the next wave of deep rest occurs at which time you will most likely go to sleep.
If you can relate to waking during the night and having trouble getting back to sleep, recognise that your wave of deep rest may not be upon you yet. If you have been awake for 40 minutes or so and are experiencing anxiety in trying to sleep, get out of bed and do something that will occupy your mind for half an hour, such as writing a list of things to do tomorrow, writing a letter or doing a crossword. These activities will stop your 'sleep anxiety' and allow you to return to your bed ready for sleep.