Treatment of Chronic Insomnia in Elderly Patients
Cognitive behavioral therapy for insomnia (CBT-I) must be your first-line treatment, as it provides superior long-term outcomes with effects sustained for up to 2 years in older adults without the risks of falls, cognitive impairment, or dementia associated with medications. 1
Initial Treatment: CBT-I Components
Start with CBT-I delivered over 4-8 sessions, combining the following evidence-based components: 1
Sleep restriction/compression therapy: Have the patient maintain a sleep log for 1-2 weeks to determine mean total sleep time, then limit time in bed to match actual sleep time (minimum 5 hours) to achieve >85% sleep efficiency—sleep compression is better tolerated than immediate restriction in elderly patients 1
Stimulus control therapy: Instruct the patient to use the bedroom only for sleep and sex, leave the bedroom if unable to fall asleep within 20 minutes, return only when sleepy, maintain consistent sleep/wake times daily, and avoid daytime napping 1
Cognitive restructuring: Challenge dysfunctional beliefs such as "I can't sleep without medication" or "My life will be ruined if I can't sleep" 1
Relaxation techniques: Teach progressive muscle relaxation, guided imagery, or diaphragmatic breathing to reduce arousal at bedtime 1
Sleep hygiene modifications: Address environmental factors (cool, dark, quiet bedroom) and behaviors (avoiding caffeine/alcohol/nicotine before bed, no heavy exercise within 2 hours of bedtime, avoiding heavy evening meals)—but never use sleep hygiene education alone, as it is insufficient without other CBT-I components 1
When CBT-I Alone Fails: Pharmacotherapy
Only consider adding medication after CBT-I has been unsuccessful, using shared decision-making to discuss benefits, harms, and short-term use. 2, 1
Medication Selection Based on Symptom Pattern
For sleep onset insomnia (difficulty falling asleep):
- Ramelteon 8 mg at bedtime is the preferred first-line option due to minimal adverse effects and no risk of falls, cognitive impairment, or dependence 1, 3
- Ramelteon demonstrated reduced sleep latency in elderly patients (≥65 years) at 4-8 mg doses in controlled trials 3
For sleep maintenance insomnia (difficulty staying asleep):
- Low-dose doxepin 3-6 mg is the most appropriate choice, with demonstrated improvement in total sleep time, wake after sleep onset, and sleep quality in older adults 1
- Suvorexant (orexin receptor antagonist) is an alternative option 1
For both onset and maintenance insomnia:
- Eszopiclone 1-2 mg (start at 1 mg in elderly due to reduced drug clearance and increased sensitivity) 1, 4
- Eszopiclone demonstrated superiority over placebo on sleep latency and maintenance measures in elderly patients (ages 65-86) in 2-week controlled trials 4
Critical Medications to Avoid in Elderly Patients
Never prescribe the following due to unacceptable risk-benefit profiles in older adults:
Benzodiazepines (temazepam, triazolam, estazolam): Higher risk of falls, cognitive impairment, dependence, and increased dementia risk even with intermittent low-dose use 2, 1
Antihistamines (diphenhydramine, hydroxyzine): Anticholinergic effects can accelerate dementia progression and cause cognitive decline 1
Sedating antidepressants (trazodone, amitriptyline, mirtazapine): Should only be used when comorbid depression/anxiety exists, as there is no systematic evidence for effectiveness in primary insomnia 1
Barbiturates and chloral hydrate: Not recommended for insomnia treatment 1
Herbal supplements (valerian, melatonin): Lack efficacy and safety data 1
Monitoring and Long-Term Management
Follow patients every few weeks initially to assess effectiveness and side effects, employing the lowest effective maintenance dosage. 1
For patients requiring chronic hypnotic medication due to severe or refractory insomnia, administration may be nightly, intermittent (three nights per week), or as needed, with consistent follow-up 1
Medication tapering and discontinuation are facilitated by CBT-I, making concurrent behavioral therapy essential even during pharmacotherapy 1
Regular reassessment is necessary to evaluate treatment effectiveness, monitor for adverse effects (especially next-day sedation, confusion, memory impairment), and assess for new or worsening comorbid disorders 1
Common Pitfalls to Avoid
Never initiate pharmacotherapy before attempting CBT-I—behavioral interventions provide superior long-term outcomes and avoid medication-related risks including dependence, tolerance, and rebound insomnia 2, 1
Do not prescribe long-term pharmacotherapy without concurrent CBT-I trials whenever possible, as combined therapy provides better outcomes with medications offering rapid relief and behavioral therapy providing sustained benefit 1
Avoid assuming sleep hygiene education alone will suffice—it must be combined with other CBT-I modalities (sleep restriction, stimulus control, cognitive therapy) to be effective for chronic insomnia 1
Be aware that FDA-approved medications require lower starting doses in elderly patients due to reduced drug clearance and increased sensitivity to peak effects 1