Partner-Involved Approaches to Insomnia and Sleep Apnea: Integrating Sleep Science into Psychotherapy with Individuals and Couples

Sleep complaints are among the most common issues that present in psychotherapy with growing evidence demonstrating that insufficient or disrupted sleep contributes to a broad range of physical, psychological, and public-health concerns. Further, epidemiologic and meta-analytic findings show that insomnia is an independent risk factor for cardiovascular disease, hypertension, and type 2 diabetes even when controlling for depression and other health behaviors (Cappuccio et al., 2010; Laugsand et al., 2011; Leproult & Van Cauter, 2010). Chronic sleep disturbance disrupts metabolic functioning, elevates inflammation, increases sympathetic activation, and alters endocrine rhythms, mechanisms directly tied to long-term health risk (Irwin, 2019).

Additionally, poor sleep is integrally connected to mental health and wellness. Longitudinal research indicates that insomnia predicts the onset and persistence of depression and anxiety disorders (Baglioni et al., 2011). Importantly for psychotherapists, insomnia is one of the most consistent and modifiable risk factors for suicidal ideation, suicide attempts, and suicide death, independent of daytime mood symptoms (Pigeon et al., 2012; Woosley et al., 2019). When clinicians treat suicide risk without addressing sleep, they may overlook a major driver of dysregulation.

Beyond mental and physical health, inadequate sleep has serious safety consequences, contributing to workplace errors, home accidents, and motor-vehicle crashes. The cognitive and psychomotor impairments associated with sleep deprivation approximate those associated with alcohol intoxication (Stutts et al., 2003; Watson et al., 2015). For many clients, these risks also affect partners, family systems, and their broader community.

Despite the profound impact of poor sleep on daily functioning, most psychotherapists receive minimal training in sleep disorders, including insomnia and obstructive sleep apnea (OSA). The clinical impact of limited training on sleep disorders is that many clinicians unknowingly treat individuals with comorbid insomnia and sleep apnea (COMISA), a highly prevalent and impairing condition associated with more pervasive symptoms, increased daytime dysfunction, and reduced overall treatment adherence (Ong et al., 2012; Sweetman et al., 2019).

Because sleep unfolds within interpersonal environments, especially within couples dynamics, relational processes often influence the trajectory of insomnia. Partner responses to nighttime awakenings—like providing emotional reassurance, co-ruminating, engaging in conflict cycles, attempting to help—can inadvertently intensify conditioned arousal (Troxel et al, 2007; Gordon & Chen, 2014). Conversely, supportive and structured partner involvement can enhance treatment adherence, reduce distress, and strengthen relational well-being (Gordon et al, 2021).

This article synthesizes research on partner-involved treatment for insomnia and COMISA and offers practical, evidence-informed guidance for psychotherapists. These strategies do not require formal cognitive behavioral therapy for insomnia (CBT-I) training; rather, they help clinicians integrate sleep-health principles into psychotherapy while leveraging relational strengths.

Insomnia Is a Relational Problem

Studies consistently show that insomnia is influenced by interpersonal dynamics, especially among co-sleeping couples. Rogojanski, Carney, and Monson (2013) demonstrated how partner reassurance, in-bed conversations, emotional caretaking, and co-rumination reinforce nighttime arousal and sleep-interfering behaviors. These patterns mirror relational dynamics common in anxiety treatment: well-intentioned partner efforts reduce short-term distress while maintaining long-term avoidance and dependence.

Ellis and colleagues demonstrated that perceived partner alliance, defined as patients’ perceptions of partner support, collaboration, and alignment with treatment goals, is associated with adherence and outcomes in cognitive behavioral therapy for insomnia (CBT-I). When patients perceive their partners as supportive of sleep-promoting behaviors such as stimulus control and consistent wake times, treatment engagement improves and insomnia severity decreases (Ellis et al., 2015; Ellis et al., 2017). Building on this work, conceptual and emerging empirical literature has highlighted the role of partner accommodation behaviors, including alterations to routines, sleep environments, or expectations intended to reduce distress. While such behaviors may enhance perceived closeness or reassurance in the short term, they may inadvertently interfere with adherence to CBT-I behavioral prescriptions and perpetuate insomnia-maintaining processes through interpersonal pathways (Rogojanski et al., 2013; Ellis et al., 2021). Together, these findings underscore that insomnia is rarely an individual disorder in isolation, but rather unfolds within a dyadic system shaped by emotion regulation, communication patterns, and shared nighttime behaviors.

Partner-Assisted CBT-I: What the Evidence Shows

The first structured partner-assisted CBT-I protocol was evaluated by Mellor et al. (2019). Couples were assigned to either partner-assisted CBT-I, individual CBT-I, or sleep-management training. The findings from this research include improved insomnia severity in all CBT-I conditions, increased adherence to core behavioral components in partner-assisted CBT-I, reduced accommodation behaviors with partner involvement, and greater confidence addressing nighttime challenges together. A review by Xie & Feeney (2024) found strong evidence in support of the mediating effects of emotional/affective mechanisms (e.g. emotions and mood states) in explaining associations between various aspects of romantic relationships (e.g. relationship satisfaction, partner conflicts, and attachment orientation) and sleep quality.

COMISA: When Poor Sleep Has Two Sources

Co-morbid insomnia and sleep apnea, also known as COMISA, affects a substantial portion of clients with chronic insomnia. Research shows a bidirectional relationship: OSA-related arousals worsen insomnia and insomnia-related hyperarousal reduces continuous positive airway pressure (CPAP) tolerance (Ong et al., 2012; Sweetman et al., 2019).

Partner involvement is especially important because partners often witness snoring, gasping, apneas, and CPAP difficulties. Research has demonstrated that supportive partner involvement predicts improved CPAP adherence (Baron et al., 2011; Ye et al., 2017), critical or coercive partner involvement predicts reduced adherence (Baron et al., 2011), and couples-based CPAP interventions show good feasibility and satisfaction (Kelly et al., 2020).

Screening for OSA in Psychotherapy

Because psychotherapists are often the first point of contact for clients with sleep complaints, clinicians can play a critical role in screening for sleep apnea.

The STOP-Bang questionnaire is a validated, easy-to-administer tool assessing snoring, tiredness, observed apneas, high blood pressure, BMI, age, neck circumference, and gender. Higher scores correlate strongly with moderate-to-severe OSA (Chung et al., 2016). Psychotherapists can integrate STOP-Bang at intake, particularly when insomnia is chronic, treatment-resistant, or accompanied by high-risk indicators such as loud snoring, witnessed apneas, excessive daytime sleepiness, obesity, hypertension, cardiometabolic disease, or poor response to prior behavioral or pharmacologic sleep interventions.

In addition to that questionnaire, clinicians can direct clients to a free and validated online screening tool (SleepHealthScreen.com) that will send the results via email and can be shared with the clinician to inform treatment. This resource screens for insomnia, apnea risk, restless legs, circadian disturbance, and other sleep-disorder symptoms and generates a printable summary for providers. Though screening is not diagnosis, it can provide a basis for making a referral to a sleep medicine specialist or primary care physician for further evaluation and potentially prevent living with untreated apnea.

Clinical Guidelines for Psychotherapists: Integrating Partner Work into Sleep Treatment

These strategies are designed for clinicians without specialized CBT-I training but who have strong skills in psychotherapy, systems work, and/or relational dynamics.

1. Conduct a Dyadic Sleep Assessment

Assess the following:

• Bedtime/wake-time routines for each partner
• Partner responses to nighttime awakenings
• In-bed emotional conversations or conflict
• Patterns of reassurance, co-rumination, or avoidance
• Environmental or behavioral accommodations
• STOP-Bang indicators and apnea symptoms
• Feelings about sleeping separately when clinically indicated

2. Provide Relational Psychoeducation

Explain insomnia as a conditioned hyperarousal disorder rather than a willpower failure. Help couples understand:

• Why in-bed wakefulness reinforces insomnia
• Why reassuring or comforting the partner in the middle of the night often maintains symptoms
• Why independent coping promotes long-term improvement
• How partners can support—not control—behavioral changes

This psychoeducation can be framed using attachment, emotion-focused therapy, cognitive behavioral therapy, and systemic concepts.

3. Modify Nighttime Interaction Patterns

Therapists can help couples establish:

• Connection rituals outside the bed
• A structured night plan for awakenings
• Reduced in-bed conversation and problem-solving
• Partner scripts that minimize emotional escalation (i.e., “I’m here with you. Let’s follow the plan we agreed on.”)

4. Facilitate Sleep-Schedule Negotiation

Many couples encounter tension around:

• Differing sleep needs
• Sleep-restriction schedules
• Fear of losing intimacy
• Childcare responsibilities

Psychotherapists can support collaborative problem-solving, boundary-setting, and communication around these issues.

5. Reduce Partner Accommodation

• Using a graded approach, take the following steps:

1. Identify accommodation behaviors
2. Rank them by difficulty
3. Reduce one or two at a time
4. Support partners in managing guilt or worry
5. Reinforce shared competence

This mirrors exposure work and builds resilience.

6. Integrate Partner Work into COMISA Treatment

When sleep apnea is diagnosed or suspected:

• Normalize CPAP challenges
• Address relational fears or frustrations
• Reduce coercive “pressure tactics”
• Support collaborative, curiosity-driven problem solving
• Encourage CPAP desensitization processes
• Emphasize the health benefits for both partners

Partner involvement often determines long-term adherence.

7. Develop Dyadic Relapse-Prevention Plans

Plans should include:

• How to address schedule drift
• What to do when accommodation returns
• How to manage episodes of increased nighttime anxiety
• How to support CPAP adherence over time
• Monthly “sleep check-ins”

What Psychotherapists Can Do

Even without delivering a formal CBT-I approach to treatment, psychotherapists can:

• Screen for sleep conditions using the STOP-Bang questionnaire and SleepHealthScreen.com
• Integrate sleep assessment into intake and couples sessions
• Identify relational maintenance factors
• Support behavior change through emotionally focused, systemic, or CBT frameworks
• Collaborate with behavioral sleep medicine clinicians and sleep physicians
• Normalize temporary co-sleeping adjustments
• Encourage dyadic coping strategies

These actions enhance therapeutic outcomes and promote client well-being.

Conclusion

Insomnia and COMISA are not only individual challenges, they but they are also relational phenomena influenced by interpersonal patterns, emotional responses, and nightly interactions. Psychotherapists are uniquely positioned to address these patterns, strengthen partner collaboration, and integrate sleep-health principles into treatment. By including tools such as STOP-Bang and SleepHealthScreen.com and by targeting relational processes that maintain insomnia, clinicians can help clients achieve better sleep, enhanced mental health, and greater relational satisfaction.