What is the appropriate management for a 55-year-old male who can fall asleep but cannot maintain sleep and experiences frequent movement during the night?

Management of Sleep Maintenance Insomnia in a 55-Year-Old Male

Start with cognitive behavioral therapy for insomnia (CBT-I) as first-line treatment, specifically targeting the sleep maintenance component with sleep restriction and stimulus control techniques 1, 2.

Initial Diagnostic Considerations

Before initiating treatment, evaluate for:

• Sleep-disordered breathing (snoring, witnessed apneas, daytime sleepiness) - the frequent movement may indicate periodic limb movements or restless legs syndrome
• Medication review - substances affecting sleep architecture
• Psychiatric comorbidities - depression and anxiety commonly present with sleep maintenance problems
• Sleep diary for 1-2 weeks - documenting actual sleep patterns, movements, and awakenings 2

Consider polysomnography if treatment-resistant or if periodic limb movement disorder or sleep apnea is suspected, as these can cause frequent nocturnal movements and awakenings 3.

First-Line Treatment: CBT-I

The evidence strongly supports CBT-I over pharmacotherapy for chronic insomnia, particularly for sleep maintenance problems 1, 2. For this patient's specific presentation:

Key CBT-I components to emphasize:

• Sleep restriction therapy - limiting time in bed to actual sleep time, then gradually increasing as sleep efficiency improves (most effective for sleep maintenance insomnia)
• Stimulus control - strengthening bed-sleep association, leaving bed if awake >20 minutes
• Relaxation techniques - addressing hyperarousal that prevents sleep maintenance

CBT-I can be delivered face-to-face, via telehealth, or through digital platforms with similar efficacy 1. The behavioral components alone (BBT-I) are effective if full CBT-I is unavailable 2.

Important caveat: Sleep hygiene education alone is insufficient and should not be used as monotherapy - it showed no benefit compared to no treatment in head-to-head trials 1.

Pharmacotherapy (If CBT-I Insufficient)

Given the patient's age (55) and sleep maintenance problem, pharmacological options should be considered only after CBT-I trial or as adjunct 2, 3:

Preferred agents for sleep maintenance in this age group:

1. Dual orexin receptor antagonists (daridorexant, suvorexant, lemborexant) - specifically effective for sleep maintenance, can be used for 3+ months, minimal side effects 3, 4. This is the most appropriate pharmacologic choice for his specific complaint.

2. Low-dose doxepin (3-6 mg) - FDA-approved for sleep maintenance, safer profile in older adults 5, 4

3. Prolonged-release melatonin - can be used up to 3 months in patients ≥55 years 3

Agents to avoid:

• Benzodiazepines and Z-drugs - should be limited to ≤4 weeks if used at all due to fall risk, cognitive impairment, and dependence potential 3. While guidelines acknowledge they can be used short-term 1, 2, the 2023 European guideline and recent literature emphasize avoiding them when possible 6, 3.

• Antihistamines (diphenhydramine) - not recommended per guidelines despite common use 3

• Antipsychotics - not recommended for insomnia 3

Addressing the Movement Component

The frequent nocturnal movement warrants specific attention:

• If periodic limb movements are confirmed, consider iron studies (ferritin <75 μg/L suggests treatment)
• Gabapentin or pregabalin may address both sleep maintenance and movement if periodic limb movement disorder is present
• This would require polysomnography for definitive diagnosis if symptoms persist despite insomnia treatment

Treatment Algorithm

1. Weeks 1-2: Sleep diary, screen for sleep disorders
2. Weeks 3-10: CBT-I (typically 4-8 sessions focusing on sleep restriction and stimulus control)
3. If inadequate response: Add dual orexin receptor antagonist OR low-dose doxepin
4. If movements persist: Consider polysomnography to evaluate for periodic limb movement disorder

The combination of CBT-I with pharmacotherapy is more effective than either alone when behavioral therapy is insufficient 2, but always start with CBT-I as it provides durable benefits without medication risks 1, 3.