Vulnerability and resistance to sleep disruption by a partner: A study of bed-sharing couples

Yours, mine, or ours? Dyadic sleep hygiene and associations with sleep quality, emotional distress, and conflict frequency in mixed-gender, bed-sharing couples

Although prior research demonstrates the interdependence of sleep quality within couples (i.e., the sleep of one partner affects the sleep of the other), little is known about the degree to which couples' sleep hygiene behaviours are concordant or discordant, and if one's own sleep hygiene or their report of their partners' sleep hygiene is related to worse relational, psychological, and sleep outcomes. In a sample of 143 mixed-gender, bed-sharing couples, each partner completed an online questionnaire consisting of the Sleep Hygiene Index (for themselves and their partner), PROMIS sleep disturbance scale, conflict frequency, PHQ-4 for anxiety and depressive symptoms, and the Perceived Stress Scale. Paired samples t-tests between partners were conducted using total and individual-item Sleep Hygiene Index scores to examine similarities and differences. Intraclass correlation coefficient (ICC) scores of dyadic reports were conducted to examine the level of agreement between each partner's sleep hygiene. Finally, we examined associations between one's own sleep hygiene and their report of their partner's sleep hygiene with both partner's sleep quality, emotional distress, and conflict frequency in a dyadic structural equation model with important covariates and alternative model tests. The results revealed a significant difference between men's (M = 14.45, SD = 7.41) and women's total score self-report sleep hygiene ([M = 17.67, SD = 8.27]; t(142) = -5.06, p < 0.001) and partners only had similar sleep hygiene for 5 out of the 13 items. Examining dyadic reports of sleep hygiene revealed that partners had moderate agreement on their partners' sleep hygiene (0.69-0.856). The results from the dyadic structural equation model revealed that poorer sleep hygiene was associated with one's own poor sleep quality, higher emotional distress, and more frequent relational conflict. For both men and women a poorer report of a partner's sleep hygiene was associated with one's own report of higher relationship conflict. Finally, men's poorer report of a partner's sleep hygiene was related better to their own sleep quality but was related to poorer sleep quality for their partners. These results have implications for sleep promotion and intervention efforts as well as for couple relationship functioning.

Dyadic sleep intervention for adult patients with cancer and their sleep-partner caregivers: A feasibility study

OBJECTIVES

Sleep disturbances are common among adult patients with cancer and their caregivers. To our knowledge, no sleep intervention to date has been designed to be provided to both patients with cancer and their caregivers simultaneously. This single-arm study aimed to pilot test the feasibility and acceptability, and to illustrate the preliminary efficacy on sleep efficiency of the newly developed dyadic sleep intervention, My Sleep Our Sleep (MSOS: NCT04712604).

METHODS

Adult patients who were newly diagnosed with a gastrointestinal (GI) cancer and their sleep-partner caregivers (n = 20 persons: 10 dyads, 64 years old, 60% female patients, 20% Hispanic, 28 years relationship duration), both of whom had at least mild levels of sleep disturbance (Pittsburgh Sleep Quality Index [PSQI] ≥ 5) participated in this study. MSOS intervention consists of four 1-hour weekly sessions delivered using Zoom to the patient-caregiver dyad together.

RESULTS

We were able to enroll 92.9% of the eligible and screened patient-caregiver dyads within 4 months. Participants reported high satisfaction in 8 domains (average 4.76 on a 1-5 rating). All participants agreed that the number of sessions, interval (weekly), and delivery mode (Zoom) were optimal. Participants also preferred attending the intervention with their partners. Both patients and caregivers showed improvement in sleep efficiency after completing the MSOS intervention: Cohen's d = 1.04 and 1.47, respectively.

SIGNIFICANCE OF RESULTS

Results support the feasibility and acceptability, as well as provide the preliminary efficacy of MSOS for adult patients with GI cancer and their sleep-partner caregivers. Findings suggest the need for more rigorous controlled trial designs for further efficacy testing of MSOS intervention.

Partner Alliance to Enhance Efficacy and Adherence of CBT-I

Cognitive behavioral therapy for insomnia (CBT-I) is now widely recognized as the first-line management strategy for insomnia, both for insomnia in its "pure" form, and when comorbid with a physical or psychological illness. However, there is a definite need to develop and test both alternative and adjunct interventions to CBT-I, before implementing them into routine practice. The aim of this article is to provide a narrative review of the literature with regard to what is known about the influence of partners on sleep, insomnia, and its management.

Protocol of a dyadic sleep intervention for adult patients with cancer and their sleep-partner caregivers

Background

Sleep disturbance is common and problematic among both patients with cancer and their sleep partner caregivers. Although 70% of the general adult population sleep in the same bed with a significant other, as do adult cancer patients and their spousal/partner caregivers, and one's sleep affect the partner's sleep, existing psychobehavioral interventions have targeted patients' and caregivers' sleep problems independently.

Methods

We developed a new sleep intervention, My Sleep Our Sleep (MSOS), for both adult patients with cancer and their sleep-partner caregivers together. This protocol is to test the feasibility and acceptability as well as to provide preliminary efficacy of the MSOS intervention, which is a dyadic intervention designed to reduce sleep disturbance and improving sleep quality of both adult cancer patients and their sleep-partner caregivers (dyads). The intervention will be delivered weekly for 4 weeks. Questionnaire and daily sleep logs will be collected at baseline (T1) and one-week after conclusion of the intervention (T2). Satisfaction with the intervention will be assessed weekly for 4 weeks.

Results

We estimate 43 dyads be enrolled (43 patients and 43 sleep-partner caregivers). We expect >75% of eligible and screened dyads will enroll within the enrollment period, >80% of enrolled dyads will complete the intervention, and >80% of participants will report satisfaction across all acceptability measures. We also expect MSOS will reveal a small-to-medium effect on sleep efficiency (primary outcome), overall sleep disturbance, subjective sleep quality, and insomnia severity (secondary outcomes).

Conclusions

Results will inform the feasibility and acceptability of conducting a dyadic sleep intervention, and provide preliminary efficacy data to guide further refinement of the intervention content and procedure for adult patients with cancer and their sleep-partner caregivers.

Trial registration

NCT04712604 Clinicaltrials.gov.

The relationship between the emergency nurses' sleep quality and the sleep quality of their spouses: A cross‐sectional descriptive‐analytical study

Background and Aims

Due to the heavy working shifts, emergency nurses may have to sleep at unusual times of the day, affecting their spouse's sleep. This study proposed to detect the relationship between the woman emergency nurse's sleep quality and the sleep quality of their spouses.

Methods

This cross‐sectional descriptive‐analytical study has lasted for 4 months since June 21, 2020. The study population was all women nurses working at a hospital emergency department. The data was collected by a demographic questionnaire and Pittsburgh sleep quality index (PSQI) for nurses and their spouses. The data were analyzed by descriptive and inferential statistics.

Results

The prevalence of sleep quality disorder among female emergency department nurses and their husbands was 82.7% and 80.6%, respectively. The mean sleep quality score of female nurses and their husbands was 8.46 ± 4.43 and 6.50 ± 2.52, respectively. A strong and positive correlation was found between the PSQI score of female nurses and their husbands (p < 0.001). The regression model showed that increasing the body mass index (BMI) of female emergency nurses can decrease their sleep quality. However, increasing the BMI of female emergency nurses' spouses and their work experience in the emergency department can improve their sleep quality.

Conclusion

The sleep quality of female emergency department nurses was directly correlated with their husbands' sleep quality. Therefore, the sleep quality of nurses working in the emergency departments and their spouses should be examined periodically.

Comparing polysomnography, actigraphy, and sleep diary in the home environment: The Study of Women's Health Across the Nation (SWAN) Sleep Study

Study Objectives

Polysomnography (PSG) is considered the "gold standard" for assessing sleep, but cost and burden limit its use. Although wrist actigraphy and self-report diaries are feasible alternatives to PSG, few studies have compared all three modalities concurrently across multiple nights in the home to assess their relative validity across multiple sleep outcomes. This study compared sleep duration and continuity measured by PSG, actigraphy, and sleep diaries and examined moderation by race/ethnicity.

Methods

Participants from the Study of Women's Health Across the Nation (SWAN) Sleep Study included 323 White (n = 147), African American (n = 120), and Chinese (n = 56) middle-aged community-dwelling women (mean age: 51 years, range: 48-57). PSG, wrist actigraphy (AW-64; Philips Respironics, McMurray, PA), and sleep diaries were collected concurrently in participants' homes over three consecutive nights. Multivariable repeated-measures linear models compared time in bed (TIB), total sleep time (TST), sleep efficiency (SE), sleep latency (SL), and wake after sleep onset (WASO) across modalities.

Results

Actigraphy and PSG produced similar estimates of sleep duration and efficiency. Diaries yielded higher estimates of TIB, TST, and SE versus PSG and actigraphy, and lower estimates of SL and WASO versus PSG. Diary SL was shorter than PSG SL only among White women, and diary WASO was lower than PSG and actigraphy WASO among African American versus White women.

Conclusions

Given concordance with PSG, actigraphy may be preferred as an alternative to PSG for measuring sleep in the home. Future research should consider racial/ethnic differences in diary-reported sleep continuity.

A machine learning model for multi-night actigraphic detection of chronic insomnia: development and validation of a pre-screening tool

We propose a novel machine learning-based method for analysing multi-night actigraphy signals to objectively classify and differentiate nocturnal awakenings in individuals with chronic insomnia (CI) and their cohabiting healthy partners. We analysed nocturnal actigraphy signals from 40 cohabiting couples with one partner seeking treatment for insomnia. We extracted 12 time-domain dynamic and nonlinear features from the actigraphy signals to classify nocturnal awakenings in healthy individuals and those with CI. These features were then used to train two machine learning classifiers, random forest (RF) and support vector machine (SVM). An optimization algorithm that incorporated the predicted quality of each night for each individual was used to classify individuals into CI or healthy sleepers. Using the proposed actigraphic signal analysis technique, coupled with a rigorous leave-one-out validation approach, we achieved a classification accuracy of 80% (sensitivity: 76%, specificity: 82%) in classifying CI individuals and their healthy bed partners. The RF classifier (accuracy: 80%) showed a better performance than SVM (accuracy: 75%). Our approach to analysing the multi-night nocturnal actigraphy recordings provides a new method for screening individuals with CI, using wrist-actigraphy devices, facilitating home monitoring.