Can't Sleep, Nightmares, Waking Up at Night: Causes and Solutions by Type

Understanding the Types of Insomnia

When Multiple Types Overlap

Insomnia doesn't always appear as a single type; it's not uncommon for multiple types to overlap, such as "difficulty falling asleep and also waking up during the night." In such cases, the causes are often complex, and improvements may not be fully achieved through lifestyle adjustments alone. Especially when sleep-onset insomnia and early morning awakening occur simultaneously, it's important to consider not just irregular lifestyle but also the possibility of underlying mood states (such as depressive symptoms).

Habits Worsening Sleep-Onset Insomnia

Sleep-onset insomnia, where you "find it hard to fall asleep even after getting into bed," occurs when the body's tension or brain's awakened state fails to transition smoothly into a sleep-ready state. In particular, those with the following habits may be unconsciously making it harder to fall asleep:

• The more you rush to "go to sleep quickly," the more your brain becomes aroused.
• Continuously looking at your smartphone in bed teaches your brain that "bed = a place for activity."
• Intense exercise or excessively hot baths right before bed prevent your body temperature from dropping sufficiently before sleep.
• Sleeping in on holidays disrupts your body clock.

Spending long periods in bed unable to sleep can reinforce the association of "bed = a place of sleepless suffering," leading to a vicious cycle that makes it even harder to fall asleep. A basic strategy to break this cycle is to get into bed only when you feel sleepy.

About Nightmares

During periods of intense stress or anxiety, you may be more prone to nightmares. If frequent nightmares disrupt your daily life, it's an opportunity to re-examine the underlying stress or mental state. Since nightmares can also be reported as a side effect of some medications, please consult your doctor if you are taking any medication.

Things to Check If You Wake Up During the Night

• Have you been told you snore or stop breathing (possible sleep apnea)?
• Do you consume alcohol before bed (nightcaps can lighten sleep)?
• Do you frequently wake up to use the toilet (possible underlying bladder condition)?
• Is it accompanied by feelings of depression or severe anxiety?

Things You Can Start Doing Today

• Wake up at a consistent time
• Get sunlight in the morning
• Avoid caffeine, alcohol, and smoking before bed
• Go to bed only when you feel sleepy
• Refrain from using your smartphone before bed

Hidden Signs in Early Morning Awakening

Early morning awakening, where you wake up two hours or more earlier than planned and cannot fall back asleep, differs from other types of insomnia and requires attention because it can be an early symptom of depression. If early morning awakening accompanied by low mood or loss of interest in previously enjoyable activities persists for more than two weeks, not only symptomatic treatment with sleep medication but also an evaluation of the underlying mood state itself may be necessary. We recommend reflecting not just on "not being able to sleep" but also on changes in your mood and motivation during the day.

When to See a Doctor

If insomnia persists three or more times a week for over a month and interferes with your daily life, it's time to consider professional consultation. Since stress, low mood, or underlying physical illnesses can be hidden causes, it's advisable to consult a professional rather than relying solely on over-the-counter sleep aids for self-treatment.

Signs that may indicate sleep apnea

• A family member or partner has mentioned snoring or pauses in your breathing.
• You feel excessively sleepy during the day despite getting enough sleep.
• You often experience headaches or a dry mouth upon waking up.
• You are overweight or have a thick neck.

If these apply, it is generally recommended to prioritize testing for sleep apnea rather than symptomatic treatment with sleep medication.

Frequently Asked Questions