Having insomnia is a risk factor for sleep apnea. The reverse is also true. Scientists think this link might arise due to many factors. For instance, sleep apnea can cause significant sleep disturbances and make people worry about not getting enough sleep.
When insomnia and sleep apnea co-occur, doctors call this comorbid insomnia and sleep apnea (COMISA).
This article explores the link between these sleep conditions before discussing the risks of having both. It then looks at how doctors treat COMISA and provides tips for better sleep.
There is good evidence of a link between insomnia and sleep apnea.
According to a 2019 review, any individual who has one of these conditions has a
A 2021 review estimates that insomnia symptoms are
Scientists are not completely sure how to explain these associations. However, the
Some possible links between insomnia and sleep apnea include the following:
- Sleep deprivation from insomnia may reduce upper-airway muscle tone.
- Sleep deprivation from insomnia may reduce oxygen saturation.
- If insomnia causes consecutive nights of poor sleep, this may predispose people to more obstructive sleep apnea events.
- If insomnia causes someone to sleep lightly, they may wake up more easily when they stop breathing if they also have sleep apnea.
- Sleep apnea can cause sleep disturbances and may cause people to wake up.
- Sleep apnea may make it harder for people to gauge how long they have been awake, which could cause or worsen insomnia.
Within any given case of COMISA, many of these relationships could be at work. Scientists continue to investigate the link between insomnia and sleep apnea.
According to the
In people with COMISA, these symptoms could be more serious than in people who have only insomnia or sleep apnea. The common symptoms include:
- feeling unrefreshed by sleep
- fatigue, or daytime sleepiness
- problems with falling asleep, staying asleep, or waking up
- problems with attention, concentration, and memory
- mood or social dysfunctions
These symptoms can lead to a reduced quality of life and may
Additionally, there is mounting scientific evidence that poor quality sleep may be a risk factor for several serious health conditions. According to a
Given these possible consequences of COMISA, it is important for people with this condition to receive a diagnosis and treatment.
Since COMISA is when someone has both sleep apnea and insomnia, a COMISA diagnosis requires doctors to diagnose both conditions in the same individual.
There is no standardized diagnostic protocol for COMISA. Doctors must make separate sleep apnea and insomnia diagnoses.
According to a
- consulting their patient’s sleep diary
- actigraphy, which is the use of a wristwatch-like device to measure a person’s sleep habits over multiple days
However, if doctors suspect that someone with insomnia also has another sleep disorder, they might do so. Since polysomnography tests are the best diagnostic tool for sleep apnea, a COMISA diagnosis will require one.
Treatment for COMISA will involve both insomnia and sleep apnea treatments. However, as the
For instance, continuous positive airway pressure (CPAP) therapy is typically the treatment of choice for moderate to severe sleep apnea.
However, there is some evidence that people with insomnia have greater difficulties tolerating this treatment. This could be because using a CPAP machine can be uncomfortable.
For this reason, some scientists recommend that people with COMISA begin treatment for insomnia before treatment for sleep apnea.
However, scientists are still unsure about the best overall combination of CBT-I and CPAP therapy. Research into the topic continues.
Aside from seeking treatment, there are some things an individual can do by themselves to get better sleep.
According to the British National Health Service (NHS), the following lifestyle modifications could relieve sleep apnea:
The NHS also details some lifestyle modifications that could improve insomnia. These include:
- going to bed and waking up at the same time every day
- creating a dark and quiet bedroom
- relaxing for at least 1 hour before bedtime
Some other useful tips include avoiding caffeine late in the day, exercising earlier in the day, and not taking naps.
This section answers some frequently asked questions about insomnia and sleep apnea.
Can sleep apnea give you insomnia?
Will CPAP help with insomnia?
If sleep apnea is causing a person’s insomnia or making it worse, then CPAP therapy could help with insomnia by treating the underlying sleep apnea.
How do you sleep with sleep apnea and insomnia?
Some useful tips include sleeping on the side, regularly exercising, and maintaining good sleep hygiene.
Sleep apnea and insomnia are both disorders that affect a person’s sleep.
The former occurs when an individual stops breathing while asleep. The latter is when an individual cannot achieve or maintain restorative sleep. COMISA is when an individual has both these sleep disorders.
Scientists know that sleep apnea is a risk factor for insomnia and vice versa. Each condition can also worsen the other.
Many factors could explain this link. For example, sleep apnea can cause sleep disruption, and insomnia could make it harder for an individual to breathe.
The main form of treatment for sleep apnea is CPAP therapy. However, insomnia can make this treatment harder to tolerate.
For this reason, some healthcare professionals recommend that an individual start treatment for COMISA with CBT-I, a form of CBT that specifically targets insomnia.
There is good evidence that CBT-I and CPAP therapy work well together. Some lifestyle modifications, such as regular exercise, could also improve symptoms of COMISA.