Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

Insomnia

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In one line

·CBT-I (a short talk therapy that retrains your sleep habits) is the best first choice and keeps working long after you finish it.

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Normal physiology

·Your brain has a sleep-wake switch controlled by two main systems: the arousal system (which keeps you awake and alert) and the sleep-drive system (which builds pressure to sleep the longer you are awake). The prefrontal cortex (the front of your brain that plans and calms) talks to the amygdala (your brain's alarm center) to turn off worry and let the sleep-drive system take over at night.

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What goes wrong

·The prefrontal cortex (the part of your brain that pumps the brakes on worry) gets worn out by chronic stress, so it cannot turn off the amygdala (your alarm center) at night. Your brain learns that bed equals danger instead of rest. The sleep switch gets stuck in the 'awake' position.

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Hallmark signs

·Trouble falling asleep at bedtime (taking more than 30 minutes most nights)
·Waking up in the middle of the night and lying awake for a long time
·Waking up too early in the morning and not being able to fall back asleep
·Feeling tired, foggy, or irritable during the day
·Worry or frustration about sleep itself
·Needing sleeping pills or alcohol to fall asleep
·Loud snoring, gasping, or breathing pauses noticed by a bed partner
·Uncontrollable leg movements or a crawling feeling in the legs at night

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Red flags · escalate now

·Loud snoring with witnessed pauses in breathing or gasping (suggests obstructive sleep pauses in breathing (apnea), which needs a sleep study and treatment to prevent heart problems and stroke)
·Sudden extreme daytime sleepiness or falling asleep at unsafe times like driving (may signal narcolepsy or severe sleep pauses in breathing (apnea))
·New insomnia with chest pain, severe headache, confusion, or thoughts of suicide (could be a heart problem, brain issue, or severe depression needing urgent care)
·Uncontrollable leg movements or crawling sensations that will not let you lie still (suggests restless legs syndrome or periodic limb movement disorder, which need specific treatment)
·Insomnia starting after a new medication or sudden medication stop (some drugs disrupt sleep or cause rebound insomnia)

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Workup

·Serum ferritin
·Thyroid-stimulating hormone (TSH)
·Basic metabolic panel (BMP)
·Hemoglobin A1c (HbA1c)
·Home sleep pauses in breathing (apnea) test (HSAT) or in-lab polysomnography (PSG) if high suspicion for obstructive sleep pauses in breathing
·PHQ-9 (Patient Health Questionnaire-9) for depression screening
·GAD-7 (Generalized Anxiety Disorder-7) for anxiety screening

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Treatment

·Cognitive Behavioral Therapy for Insomnia (CBT-I) — delivered in person, by phone, or via a digital program over 4 to 8 sessions
·Dual orexin receptor antagonist (suvorexant 10–20 mg, lemborexant 5–10 mg, or daridorexant 25–50 mg) taken 30 minutes before bedtime
·Low-dose doxepin 3–6 mg taken 30 minutes before bedtime
·Two-week sleep diary (paper or app) started before and continued during treatment
·Address housing instability, untreated substance use (with medication-assisted treatment if needed), access to mental health therapy, and sleep environment (dark, cool, quiet room) on the same treatment plan as medication or CBT-I
·Melatonin 0.5–5 mg taken 1 to 2 hours before desired bedtime, ONLY if the sleep window is shifted too late (delayed sleep-wake phase disorder)
·Avoid benzodiazepines (temazepam, lorazepam) and Z-drugs (zolpidem, eszopiclone, zaleplon) for chronic insomnia, especially in adults over 65

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NCLEX trap

·Benzodiazepines work fast but cause dependence (the body gets hooked and needs more), hide sleep pauses in breathing (apnea) (because they relax throat muscles even more), and stop working after a few weeks. The American Academy of Sleep Medicine says use CBT-I (cognitive behavioral therapy for insomnia) first. Benzos are only for very short-term use (under 2-4 weeks) and only after you rule out pauses in breathing.
·Insomnia is a real problem in the brain's sleep-wake circuit — the switch that turns alertness off is stuck. It is not laziness or weak willpower. It needs real treatment: CBT-I (which retrains the brain), sometimes medicine, plus help with stress, safety, and mental health. Telling someone to relax dismisses the actual broken circuit and delays real care.
·Insomnia and depression feed each other in a loop — bad sleep makes mood worse, and low mood keeps sleep broken. Current guidelines (APA, AASM) say treat both at the same time: CBT-I for the sleep circuit and therapy or medicine for the mood. Treating only one leaves the other to keep the cycle going.
·Sleep medicines (especially benzodiazepines, Z-drugs like zolpidem, or even some antihistamines) relax the throat muscles and can make pauses in breathing (apnea) worse — the airway closes more and breathing stops longer. Always screen for pauses in breathing first: ask about loud snoring, gasping or choking at night, and severe daytime sleepiness. If any are present, order a sleep study before any sleep medicine.
·Most insomnia medicines (like doxepin, trazodone, or mirtazapine) take 1-2 weeks to show benefit, and some need 3-4 weeks to reach full effect. Switching too fast prevents any medicine from working, teaches the brain to expect quick fixes (which do not exist), and raises the risk of side effects from starting and stopping. Stick with one plan for at least 2-4 weeks unless there is a dangerous side effect.
·Stress, fear, and instability keep the brain's alert system turned ON all the time. Pills cannot turn it off if the danger is real. Insomnia treatment must include both: fix the sleep circuit (CBT-I, sometimes medicine) AND help with housing, safety, income support, therapy for trauma, or job accommodations. The treatment plan must list both or it will fail.

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