Tag Archive for: In-Lab Sleep Study

Sleep Disorders and Alzheimer’s

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Sleep Disorders and Alzheimer’s Disease: Understanding the Connection

When most people think about Alzheimer’s disease, they think about memory loss. However, researchers are increasingly discovering that sleep disorders may play a much larger role in brain health than previously believed.

Poor sleep doesn’t just leave you feeling tired—it may contribute to changes in the brain associated with Alzheimer’s disease and other forms of dementia. Likewise, Alzheimer’s disease itself often causes significant sleep disturbances, creating a cycle that can negatively affect both patients and caregivers.

At Comprehensive Sleep Care Center, we help patients throughout Northern Virginia, Maryland, and the Washington, DC metro area identify and treat sleep disorders that may impact cognitive health and overall quality of life.

The Relationship Between Sleep and Brain Health

Sleep is one of the brain’s most important maintenance periods.

During deep sleep, your brain:

  • Clears waste products and toxins
  • Consolidates memories
  • Repairs brain cells
  • Supports learning and concentration
  • Regulates mood
  • Helps maintain healthy brain function

One of the waste products removed during sleep is beta-amyloid, a protein that can accumulate in the brains of people with Alzheimer’s disease.

Research suggests that chronic poor sleep may reduce the brain’s ability to clear these proteins efficiently, potentially increasing the risk of cognitive decline over time.

Can Sleep Disorders Increase Alzheimer’s Risk?

While sleep disorders do not directly cause Alzheimer’s disease, untreated sleep problems may increase risk factors associated with cognitive decline.

Several sleep disorders have been linked to memory problems, including:

Obstructive Sleep Apnea (OSA)

Sleep apnea repeatedly interrupts breathing throughout the night, causing drops in oxygen levels and frequent awakenings—even if you don’t remember them.

Untreated sleep apnea has been associated with:

  • Memory difficulties
  • Poor concentration
  • Slower thinking
  • Increased risk of cognitive impairment
  • Higher risk of dementia in some studies

The good news is that treating sleep apnea may improve daytime alertness, attention, and overall brain function.

Chronic Insomnia

People who consistently struggle to fall asleep or stay asleep may experience:

  • Difficulty concentrating
  • Forgetfulness
  • Mood changes
  • Reduced cognitive performance

Long-term sleep deprivation places additional stress on the brain and may contribute to cognitive decline over time.

REM Sleep Behavior Disorder (RBD)

REM Sleep Behavior Disorder causes individuals to physically act out dreams while sleeping.

This condition has been associated with certain neurodegenerative diseases and should be evaluated by a sleep medicine specialist.

Sleep Changes Can Be an Early Sign of Alzheimer’s

Sleep problems are common in people with Alzheimer’s disease and may appear years before significant memory loss develops.

Common sleep-related symptoms include:

  • Difficulty falling asleep
  • Frequent nighttime awakenings
  • Excessive daytime sleepiness
  • Increased napping
  • Restlessness at night
  • Wandering during the evening (“sundowning”)
  • Changes in sleep-wake cycles

While these symptoms do not necessarily indicate Alzheimer’s disease, they should not be ignored—especially if they occur alongside memory concerns.

Signs You Should Talk to a Sleep Specialist

If you or a loved one experiences any of the following, it may be time for a professional sleep evaluation:

  • Loud snoring
  • Witnessed pauses in breathing
  • Morning headaches
  • Daytime fatigue
  • Memory concerns
  • Difficulty concentrating
  • Frequent nighttime awakenings
  • Acting out dreams
  • Trouble staying asleep
  • Excessive daytime sleepiness

Many sleep disorders can be diagnosed through a Home Sleep Test (HST) or an overnight in-lab sleep study.

Can Treating Sleep Disorders Help?

While treating a sleep disorder cannot cure Alzheimer’s disease, improving sleep may:

  • Improve daytime alertness
  • Support memory and concentration
  • Reduce fatigue
  • Improve mood
  • Enhance quality of life
  • Improve cardiovascular health
  • Help caregivers by reducing nighttime disruptions

Patients with obstructive sleep apnea often experience significant improvements in energy and cognitive function after beginning treatment.

Treatment options may include:

  • CPAP therapy
  • Oral Appliance Therapy for eligible patients
  • Lifestyle modifications
  • Weight management
  • Sleep hygiene improvements
  • Behavioral therapy for insomnia
  • Medication management when appropriate

Protect Your Brain by Prioritizing Healthy Sleep

Healthy sleep is one of the most important investments you can make in your long-term health.

If you are experiencing persistent sleep problems, don’t assume they are simply a normal part of aging. Many sleep disorders are highly treatable, and early diagnosis may help improve both your sleep and your overall health.

At Comprehensive Sleep Care Center, our board-certified sleep medicine physicians provide comprehensive evaluation and treatment for adults and children experiencing sleep disorders.

Schedule Your Sleep Evaluation Today

If you or someone you love is experiencing symptoms of sleep apnea, insomnia, excessive daytime sleepiness, or memory concerns related to poor sleep, our experienced team is here to help.

Comprehensive Sleep Care Center proudly serves patients throughout:

Virginia Locations

Frequently Asked Questions

Does poor sleep cause Alzheimer’s disease?

Poor sleep alone does not cause Alzheimer’s disease. However, research suggests that chronic sleep disruption may contribute to changes in the brain associated with cognitive decline and may increase certain risk factors.

Is sleep apnea linked to dementia?

Several studies have found an association between untreated obstructive sleep apnea and an increased risk of cognitive impairment and dementia. More research is ongoing to better understand this relationship.

Can treating sleep apnea improve memory?

Treating sleep apnea often improves daytime alertness, attention, concentration, and quality of life. Some patients also notice improvements in memory and cognitive function, although results vary depending on the individual.

When should I see a sleep specialist?

If you have loud snoring, daytime fatigue, insomnia, witnessed pauses in breathing, memory concerns, or persistent sleep problems, schedule an evaluation with a board-certified sleep medicine specialist.

Sleep Study FAQ

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SLEEP STUDY FAQ (ANSWERED BY A REGISTERED POLYSOMNOGRAPHIC TECHNOLOGIST)

By Amanda Jones RPSGT

If you have questions about undergoing a sleep study, you’re not alone. Here are some FAQ that I get asked while working at Comprehensive Sleep Care Center as a Sleep Technologist. They may be able to help you understand the process and put you more at ease.

A sleep study, known as a polysomnogram, is an overnight test done in a sleep lab. Prior to the study, a sleep technologist will place sensors on your scalp, face, chest and legs. These sensors will record brainwave activity (to assess sleep stage), eye movements, muscle activity, heart rhythm, body movements, nasal/oral airflow, respiratory effort and oxygenation. In addition, your body position will be observed on video camera. All this information will better assist your sleep physician in determining the cause of any sleep related problems.

Sleep Study FAQ

Q: WHY DO I NEED A SLEEP STUDY?

A: Sleep studies help doctors diagnose sleep disorders such as sleep apnea, periodic limb movement disorder, narcolepsy, restless legs syndrome, insomnia, and nighttime behaviors like sleepwalking and REM sleep behavior disorder.

Q: CAN MY SPOUSE OR SIGNIFICANT OTHER STAY WITH ME ON THE NIGHT OF MY STUDY?

A: Significant others may have helpful insight during the evaluation stage, but they are not usually permitted to stay with you on the night of your study. IF there is a reason they need to stay, please discuss it with your doctor during your consult.

Q: WHAT IF I CAN’T SLEEP?

A: Don’t stress, we don’t expect you to sleep as well as you would at home, and we take that into account. Nearly everyone can fall asleep during an in-lab study. In most cases, you do not need a full 6 hours of sleep for the doctor to make a diagnosis. There are several things you can do to help you sleep the night of your study. First consider waking a little earlier than usual on the day of your study. Do not take naps during the day. Avoid the consumption of all caffeine—skipping coffee, tea, soda pop, chocolate, energy drinks, and other caffeinated products.

Q: CAN I BRING MY OWN PILLOW?

A: Of course! We want you to be as comfortable as possible so you can sleep. Our sleep labs use My Pillows on each bed (one soft and one firm).  However, most people prefer their own pillow. In fact, if you have a special blanket or throw you sleep with, bring that as well! The more comfortable you feel the better you will sleep.

Q: WHAT ABOUT ALL THE WIRES? WILL THEY STAY ON ALL NIGHT?

A: After you arrive at the sleep center a technician will apply small sensors to your head and body with adhesive. The wires connecting the sensors to a headbox are usually gathered to the side with plenty of slack so you can move around during sleep. Elastic belts will be wrapped around your chest and abdomen to measure breathing. A clip will be placed on your finger or (in some cases your earlobe) to monitor oxygen levels in your bloodstream. Most people get used to it all very quickly. Everything is attached using medical tape and/or paste. The wires are attached to stay on all night. If anything does come loose the tech will enter the room to re-attach them during the night. We attempt to do this without waking the patient if possible. The sensors are attached to your body in a manner like electrocardiogram (EKG) electrodes and are not painful. In rare instances, some people with sensitive skin develop local irritation at the electrode sites. If you have experienced skin irritation due to EKG testing in the past, or have an adhesive allergy please notify the Sleep Center and the technologist prior to the study.

 Q: CAN I SLEEP ON MY SIDE? WHAT IF I MOVE AROUND IN MY SLEEP?

A: We want you to sleep in your natural position. Many people roll over and change positions multiple times during the night. While sleep apnea is more prevalent when sleeping on your back, the Technician may ask you to try sleeping on your back for a portion of the test. This allows us to check your breathing in multiple positions. IF you’re unable to, don’t worry! It may be very difficult to sleep on your stomach so the technician may ask you to use a pillow to keep you from rolling all the way onto your stomach.

Q: DURING MY SLEEP STUDY, WHAT IF I HAVE TO USE THE RESTROOM?

A: If you need to get up during your sleep study just notify your sleep technologist (by calling out or sitting up in the bed) and let them know that you need to use the restroom. They will unhook one or two central connections, which will enable you to get up and walk to the bathroom. The headbox even has a strap you can carry over your shoulder or around your neck. (The headbox is the device that all your wires connect into)

Q: MAY I SLEEP NAKED?

A: No. As a courtesy to our sleep techs we request that you sleep in pajamas or a t-shirt and shorts.

Q: HOW LONG IS THE SLEEP STUDY? WHAT IF I WAKE UP EARLY? CAN I SLEEP IN?

A: The wake-up time is 5 am, and unfortunately, we cannot allow patients to sleep in. Insurance requires a minimum of 6 hours of recording, and as long as we have reached that, you are free to leave before 5 am (some restrictions may apply depending on if the patient took a sleeping medication). Many people ask why they must get up so early. Our Sleep Technicians need to ensure all patients are up and checked out so they can upload all the data to be read and get home so they too can get some sleep.

Q: HOW HARD IS THE PASTE TO GET OUT OF MY HAIR?

A: The paste is water soluble! You can use a hairbrush, but some paste will remain. The best thing to do is wash your hair with very warm water. We recommend using conditioner first to loosen up the paste and then washing your hair. Rubbing alcohol is also an effective, quick way to remove paste but can be rough on the scalp. Also, Micellar water can be effective and less harsh.

Q: CAN THEY TELL ME THE RESULTS OF MY SLEEP STUDY IN THE MORNING?

A: Unfortunately, no. The sleep technologist is collecting data that will be interpreted by your sleep medicine physician. You will receive your results at your follow-up visit.

Whether you were a little nervous about your upcoming sleep study, or just curious about the process, we hope this cleared up a few questions and put your mind at ease! Remember, your Comprehensive Sleep Care Center sleep technologist is not only there to gather information, but they are there to make the process as comfortable as possible! We look forward to seeing you soon!

 

Sleep Study FAQ

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Sleep Study FAQ (Answered by a Registered Polysomnographic Technologist)

By Amanda Jones RPSGT

If you have questions about undergoing a sleep study, you’re not alone. Here are some common questions that I get asked while working at Comprehensive Sleep Care Center as a Sleep Technologist. They may be able to help you understand the process and put you more at ease.

A sleep study, known as a polysomnogram, is an overnight test done in a sleep lab. Prior to the study, a sleep technologist will place sensors on your scalp, face, chest and legs. These sensors will record brainwave activity (to assess sleep stage), eye movements, muscle activity, heart rhythm, body movements, nasal/oral airflow, respiratory effort and oxygenation. In addition, your body position will be observed on video camera. All this information will better assist your sleep physician in determining the cause of any sleep related problems.

Q: Why do I need a sleep study?

A: Sleep studies help doctors diagnose sleep disorders such as sleep apnea, periodic limb movement disorder, narcolepsy, restless legs syndrome, insomnia, and nighttime behaviors like sleepwalking and REM sleep behavior disorder.

Q: Can my spouse or significant other stay with me on the night of my study?

A: Significant others may have helpful insight during the evaluation stage, but they are not usually permitted to stay with you on the night of your study. IF there is a reason they need to stay, please discuss it with your doctor during your consult.

Q: What if I can’t sleep?

A: Don’t stress, we don’t expect you to sleep as well as you would at home, and we take that into account. Nearly everyone can fall asleep during an in-lab study. In most cases, you do not need a full 6 hours of sleep for the doctor to make a diagnosis. There are several things you can do to help you sleep the night of your study. First consider waking a little earlier than usual on the day of your study. Do not take naps during the day. Avoid the consumption of all caffeine—skipping coffee, tea, soda pop, chocolate, energy drinks, and other caffeinated products.

Q: Can I bring my own pillow?

A: Of course! We want you to be as comfortable as possible so you can sleep. Our sleep labs use My Pillows on each bed (one soft and one firm).  However, most people prefer their own pillow. In fact, if you have a special blanket or throw you sleep with, bring that as well! The more comfortable you feel the better you will sleep.

Q: What about all the wires? Will they stay on all night?

A: After you arrive at the sleep center a technician will apply small sensors to your head and body with adhesive. The wires connecting the sensors to a headbox are usually gathered to the side with plenty of slack so you can move around during sleep. Elastic belts will be wrapped around your chest and abdomen to measure breathing. A clip will be placed on your finger or (in some cases your earlobe) to monitor oxygen levels in your bloodstream. Most people get used to it all very quickly. Everything is attached using medical tape and/or paste. The wires are attached to stay on all night. If anything does come loose the tech will enter the room to re-attach them during the night. We attempt to do this without waking the patient if possible. The sensors are attached to your body in a manner like electrocardiogram (EKG) electrodes and are not painful. In rare instances, some people with sensitive skin develop local irritation at the electrode sites. If you have experienced skin irritation due to EKG testing in the past, or have an adhesive allergy please notify the Sleep Center and the technologist prior to the study.

 Q: Can I sleep on my side? What if I move around in my sleep?

A: We want you to sleep in your natural position. Many people roll over and change positions multiple times during the night. While sleep apnea is more prevalent when sleeping on your back, the Technician may ask you to try sleeping on your back for a portion of the test. This allows us to check your breathing in multiple positions. IF you’re unable to, don’t worry! It may be very difficult to sleep on your stomach so the technician may ask you to use a pillow to keep you from rolling all the way onto your stomach.

Q: During my sleep study, what if I have to use the restroom?

A: If you need to get up during your sleep study just notify your sleep technologist (by calling out or sitting up in the bed) and let them know that you need to use the restroom. They will unhook one or two central connections, which will enable you to get up and walk to the bathroom. The headbox even has a strap you can carry over your shoulder or around your neck. (The headbox is the device that all your wires connect into)

Q: May I sleep naked?

A: No. As a courtesy to our sleep techs we request that you sleep in pajamas or a t-shirt and shorts.

Q: How long is the sleep study? What if I wake up early? Can I sleep in?

A: The wake-up time is 5 am, and unfortunately, we cannot allow patients to sleep in. Insurance requires a minimum of 6 hours of recording, and as long as we have reached that, you are free to leave before 5 am (some restrictions may apply depending on if the patient took a sleeping medication). Many people ask why they must get up so early. Our Sleep Technicians need to ensure all patients are up and checked out so they can upload all the data to be read and get home so they too can get some sleep.

Q: How hard is the paste to get out of my hair?

A: The paste is water soluble! You can use a hairbrush, but some paste will remain. The best thing to do is wash your hair with very warm water. We recommend using conditioner first to loosen up the paste and then washing your hair. Rubbing alcohol is also an effective, quick way to remove paste but can be rough on the scalp. Also, Micellar water can be effective and less harsh.

Q: Can they tell me the results of my sleep study in the morning?

A: Unfortunately, no. The sleep technologist is collecting data that will be interpreted by your sleep medicine physician. You will receive your results at your follow-up visit.

Whether you were a little nervous about your upcoming sleep study, or just curious about the process, we hope this cleared up a few questions and put your mind at ease! Remember, your Comprehensive Sleep Care Center sleep technologist is not only there to gather information, but they are there to make the process as comfortable as possible! We look forward to seeing you soon!