Can’t Keep Your Eyes Open During the Day? 5 Causes After 65

Can't Keep Your Eyes Open During the Day? 5 Causes After 65

If you can't keep your eyes open during the day, you're not alone—especially after age 65. Daytime sleepiness is common as we get older, but it's not something to ignore. While some causes are harmless and easy to fix, others can affect safety, memory, and overall health if left unaddressed.

This guide explains five credible, common causes of excessive daytime sleepiness in adults over 65, using clear, practical language. The goal is to help you understand what might be going on and when it's time to take action.

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Why Daytime Sleepiness Increases After 65

Aging naturally changes how the brain regulates sleep and wakefulness. Older adults often experience:

• Lighter sleep with more nighttime awakenings
• Less deep (restorative) sleep
• Earlier bedtimes and earlier wake-ups
• Greater sensitivity to medications

These changes can add up. Still, feeling sleepy most days is not something you should "just live with."

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1. Poor Sleep Quality at Night

One of the most common reasons people say "I can't keep my eyes open during the day" is simply not getting enough quality sleep at night.

Common sleep disruptors after 65 include:

• Frequent nighttime urination
• Pain from arthritis or joint problems
• Acid reflux
• Restless legs or leg cramps
• Noise, light, or an uncomfortable sleep environment

Even if you spend 7–8 hours in bed, broken sleep can leave you exhausted the next day.

What may help:

• Keeping a consistent sleep schedule
• Limiting caffeine after early afternoon
• Avoiding screens close to bedtime
• Addressing pain or nighttime symptoms with a doctor

If daytime sleepiness persists despite good sleep habits, something else may be contributing.

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2. Medication Side Effects and Drug Interactions

Many adults over 65 take multiple medications, and daytime drowsiness is a common side effect.

Medications that often cause sleepiness include:

• Blood pressure medicines
• Anti-anxiety or sleep medications
• Certain antidepressants
• Pain medications, especially opioids
• Allergy medications (even some labeled "non-drowsy")

Taking several medications together can amplify fatigue, even if each one seems mild on its own.

Important note:

Never stop or adjust medications on your own. A doctor or pharmacist can review your medication list to see if:

• Doses can be adjusted
• Timing can be changed
• A less sedating alternative is available

This step alone often improves daytime alertness significantly.

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3. Sleep Apnea and Other Sleep Disorders

Sleep disorders are frequently underdiagnosed in older adults. One of the most important to consider is sleep apnea.

Sleep apnea may cause:

• Loud snoring
• Gasping or choking during sleep
• Morning headaches
• Dry mouth
• Severe daytime fatigue

Because breathing repeatedly stops during sleep, the brain never gets fully restorative rest—even if you sleep for many hours.

Other sleep-related conditions that may cause daytime sleepiness include:

• Periodic limb movement disorder
• Insomnia
• Circadian rhythm changes

If you can't keep your eyes open during the day and also feel unrefreshed in the morning, a sleep evaluation may be appropriate.

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4. Medical Conditions That Affect Energy and Alertness

Several common health conditions become more prevalent after 65 and can directly cause daytime sleepiness.

These include:

• Thyroid disorders, especially hypothyroidism
• Anemia, which reduces oxygen delivery to the brain
• Heart or lung disease, affecting oxygen levels
• Diabetes, especially if blood sugar fluctuates
• Chronic kidney disease

Fatigue from these conditions may feel different from being "sleepy," but many people describe it as struggling to stay awake.

Why this matters:

Persistent sleepiness can sometimes be an early or worsening sign of an underlying medical issue. Blood tests and routine checkups often identify treatable causes.

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5. Neurological Conditions, Including Narcolepsy

Although rare, narcolepsy and other neurological conditions can occur or persist later in life and may be overlooked.

Narcolepsy can cause:

• Sudden urges to sleep
• Falling asleep during quiet activities
• Trouble staying awake despite adequate sleep
• Brain fog or memory issues

Because symptoms can overlap with normal aging, narcolepsy is often misattributed to "just getting older."

If daytime sleepiness feels uncontrollable or unsafe—such as dozing off while reading, watching TV, or riding in a car—you can use a free AI-powered Narcolepsy symptom checker to quickly assess whether your symptoms align with this condition and if further medical evaluation may be needed.

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When Daytime Sleepiness Becomes a Safety Issue

Being sleepy during the day isn't just uncomfortable—it can be dangerous.

Increased risks include:

• Falls
• Car accidents
• Medication errors
• Worsening memory or confusion

If you ever feel drowsy while driving or performing tasks that require attention, stop and seek medical advice promptly.

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What You Can Do Next

If you can't keep your eyes open during the day, consider these steps:

• Track your sleep for 1–2 weeks (bedtime, wake time, awakenings)
• List all medications and supplements, including over-the-counter ones
• Note when sleepiness is worst (morning, afternoon, after meals)
• Be honest with your doctor about how much it affects daily life

Speak to a doctor if:

• Daytime sleepiness is persistent or worsening
• You fall asleep unintentionally
• You snore loudly or stop breathing during sleep
• You feel unsafe driving or walking
• You have other symptoms like weakness, chest pain, or confusion

Some causes of excessive daytime sleepiness can be serious or life-threatening if untreated. A healthcare professional can help identify what's going on and guide next steps.

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The Bottom Line

If you can't keep your eyes open during the day, especially after 65, it's not something to brush off. Aging changes sleep—but constant daytime drowsiness usually has a reason.

The most common causes include:

• Poor nighttime sleep
• Medication effects
• Sleep disorders like sleep apnea
• Medical conditions affecting energy
• Less commonly, neurological conditions such as narcolepsy

Many of these issues are treatable, and addressing them can improve energy, safety, and quality of life. If you're unsure where to start, using a free AI-powered Narcolepsy symptom checker can help you determine if your symptoms warrant a conversation with your doctor—but remember, online tools should never replace professional medical advice.

If something feels serious or life-threatening, speak to a doctor right away. Getting answers is often the first step toward feeling more awake, alert, and confident during the day.