How Does COVID Affect Your Sleep?

COVID-19 can disrupt sleep in a variety of ways, including causing insomnia, nightmares, and changes to your sleep-wake cycle. These disturbances can have both short- and long-term effects, especially for those experiencing long COVID symptoms.

Long COVID and Sleep Problems

Long COVID (also known as post-COVID syndrome or “long hauler” syndrome) refers to symptoms that persist for weeks, months, or even years after recovering from the initial viral infection. Sleep disturbances are a common complaint among people with long COVID.

Difficulty falling or staying asleep
Nightmares and vivid dreams
Fatigue despite adequate time in bed

For more information about sleep and its importance, visit Sleep.

Insomnia After COVID

Insomnia is a frequent issue following COVID-19 infection. It can be triggered by:

Mental health conditions (stress, anxiety, depression)
Changes in daily routine or work schedule
Pain or discomfort
Medications, including painkillers and certain supplements

If you are struggling to sleep, consider making an appointment with your GP for a thorough health assessment. Bringing a sleep diary can help your doctor understand your sleep patterns and challenges.

Treatment options may include:

Establishing a regular sleep schedule
Avoiding stimulants like caffeine and nicotine
Creating a comfortable, dark sleep environment
Talking therapy or cognitive behavioural therapy (CBT)
Prescription sleeping tablets (only as a last resort due to potential side effects)

Changing your approach to insomnia and addressing underlying causes is often the first recommended step.

Nightmares and Vivid Dreams

Many people with COVID-19 report experiencing nightmares, wild dreams, insomnia, and even sleepwalking. While research is ongoing, it is clear that COVID-19 can significantly impact sleep quality.

Nightmares are vivid, distressing dreams that often wake you up.
Common themes include being chased, health fears, and death.
Nightmares usually occur during REM sleep but can also happen during lighter sleep stages or naps.
People with PTSD may experience nightmares at bedtime, leading to further insomnia.

Nightmares can be caused by:

Stress and anxiety
Irregular sleep schedules
Medications that affect brain function (such as antidepressants, ACE inhibitors, benzodiazepines)
Underlying mental health disorders

If nightmares persist, consult your physician. Improving sleep hygiene and, if necessary, adjusting medications can help. Talk therapy may also be beneficial.

Circadian Rhythm Disturbances

Your body’s sleep-wake cycle is regulated by an internal clock called the circadian rhythm. Disruption of this rhythm can lead to sleep disorders.

Delayed Sleep Phase Disorder (DSPD): Going to bed and waking up much later than usual, with peak productivity late at night.
Jet Lag Disorder: Insomnia or excessive sleepiness after traveling across time zones.

Chronic illnesses—including dementia, Alzheimer’s, Parkinson’s, hepatitis C, and autoimmune diseases like rheumatoid arthritis—can also affect sleep quality. According to a Cleveland Clinic study, 40% of long COVID patients reported sleep disturbances.

Mental Health and Sleep

There is a strong link between sleep and mental health. Depression and anxiety can disrupt sleep, increase nightmares, and reduce overall sleep quality. People with serious mental illness often experience more sleep problems due to:

Worries about recovery
Social isolation
Work-related stress
Hospital environments with noise and interruptions

A 2026 review found that insomnia remains a frequent symptom among people affected by COVID-19. Changes to daily routines and altered patterns of light and dark can further disrupt sleep and impact immune and metabolic function.

To improve sleep:

Get enough rest
Avoid caffeine
Exercise regularly
Eat a healthy diet
Consider cognitive behavioral therapy if needed

Early treatment of mental health symptoms can reduce the risk of sleep disturbances and relapses.

Frequently Asked Questions

Can COVID-19 cause insomnia?

Yes, COVID-19 can cause insomnia both during acute infection and as part of long COVID. Insomnia may be due to stress, anxiety, medication side effects, or changes in routine.

Why am I having vivid dreams or nightmares after COVID?

COVID-19 can affect brain function and increase stress, both of which may lead to more vivid dreams or nightmares. Medications and disrupted sleep schedules can also contribute.

What are common sleep problems seen in long COVID?

Common sleep issues include trouble falling or staying asleep, nightmares, daytime fatigue, and changes in circadian rhythm.

How can I improve my sleep after COVID?

Try to maintain a regular sleep schedule, avoid caffeine and screens before bed, create a restful sleep environment, and seek medical advice if problems persist.

Should I see a doctor for sleep problems after COVID?

Yes, if sleep issues last more than a few weeks or interfere with daily life, consult your doctor. Bring a sleep diary to help identify patterns and possible solutions.