741 Sleep and postpartum depression in healthy fathers: Perceptions of sleep quality predict severity of symptoms

Abstract Introduction Research on the link between sleep quality and depression in the postpartum period has focused primarily on mothers. Although fathers also experience poorer postpartum sleep and are at risk of developing depressive symptoms, they remain understudied. To date, the limited research focusing on paternal sleep and depression has relied on subjective measures of sleep, without objective verification. The current study implemented a multi-measure approach using subjective and objective indices to explore the relationship between sleep and depressive symptoms in fathers at 6 months postpartum. Methods Fifty-four healthy fathers participated in this cross-sectional study. Paternal sleep was assessed for 2 weeks utilizing: 1) a self-report daily sleep diary, 2) a self-report perceived sleep quality rating, and 3) actigraphy. Subjective indices via the sleep diary measured participants’ perception of their total nocturnal sleep duration and total number of awakenings (self-reported sleep duration and fragmentation). Perceived sleep quality ratings measured participants’ perceptions of how well they thought they slept. Objective sleep variables measured through actigraphy included: total nocturnal sleep duration, number of awakenings, sleep efficiency, and wake after sleep onset (WASO). Paternal depressive symptoms were assessed with the Center for Epidemiologic Studies – Depression Scale (CES-D). Results Regression analyses showed that subjective sleep variables (measured by the sleep diary) and objective sleep variables (measured by actigraphy) did not significantly predict postpartum depressive symptoms in fathers (p > .05). However, self-reported perceived sleep quality significantly predicted postpartum depressive symptom severity in fathers (R2 = .172, p = .034). Conclusion These findings advance our understanding of the link between sleep and depression in fathers. The results highlight the important role of fathers’ perceptions of sleep quality, rather than the actual quality or quantity of their sleep (measured through the sleep diary or actigraphy), in the development of postpartum depressive symptoms. The multi-measure approach to sleep implemented in this study expanded our knowledge about how different facets of sleep relate to depression. These findings have important implications for the development of clinical interventions targeting paternal sleep and mood in the months following childbirth. Support (if any) Social-Science and Humanities Research Council (SSHRC) and Fonds de recherche du Québec – Santé (FRQS)

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Nocturnal Sleep–Wake Parameters of Adolescents at Home Following Cancer Chemotherapy

Biological Research For Nursing ◽

10.1177/1099800411408414 ◽

2011 ◽

Vol 14 (3) ◽

pp. 236-241 ◽

Cited By ~ 3

Author(s):

Amy J. Walker ◽

Kyle P. Johnson ◽

Christine Miaskowski ◽

Vivian Gedaly-Duff

Keyword(s):

Sleep Duration ◽

Cancer Chemotherapy ◽

Sleep Onset ◽

Sleep Diary ◽

Nocturnal Sleep ◽

Wake Time ◽

Targeted Interventions ◽

Time In Bed ◽

Wrist Actigraphy ◽

At Home

Purpose: The purpose of this descriptive, longitudinal study was to describe objective nocturnal sleep–wake parameters of adolescents at home after receiving chemotherapy in the hospital or outpatient clinic and explore differences in sleep variables by age, gender, and corticosteroid use. Methods: We collected 7 days of wrist actigraphy and sleep diary data from 48 adolescents (10–19 years) who were receiving cancer chemotherapy for a primary or secondary cancer or a relapse. The actigraphic sleep variables included rest interval (i.e., time in bed), sleep onset, sleep offset, sleep duration, total sleep time (TST), wake after sleep onset (WASO), and %WASO. Results: Of the 48 adolescents, 38 had at least five nights of scored actigraphy and were included in analyses. Older (13–18 years) adolescents went to bed later and had fewer minutes of TST than younger adolescents (10–12 years). Exploratory analyses revealed no differences between adolescents who were taking oral corticosteroids (i.e., prednisone, dexamethasone) and those who were not or between males and females. Conclusion: These adolescents had sleep durations that met or exceeded the recommended sleep duration for their age groups but experienced significant WASO. Further research is needed to estimate sleep needs of adolescents during chemotherapy and determine factors that contribute to nocturnal wake-time so that targeted interventions can be designed to improve sleep quality.

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The Impact of Sleep Timing, Sleep Duration, and Sleep Quality on Depressive Symptoms and Suicidal Ideation amongst Japanese Freshmen: The EQUSITE Study

Sleep Disorders ◽

10.1155/2016/8737654 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 17

Author(s):

Atin Supartini ◽

Takanori Honda ◽

Nadzirah A. Basri ◽

Yuka Haeuchi ◽

Sanmei Chen ◽

...

Keyword(s):

Depressive Symptoms ◽

Suicidal Ideation ◽

Sleep Quality ◽

Sleep Duration ◽

Sleep Onset ◽

Poor Sleep ◽

Sleep Onset Latency ◽

Onset Latency ◽

Poor Sleep Quality ◽

The Impact

Aim. The aim of this study was to identify the impact of bedtime, wake time, sleep duration, sleep-onset latency, and sleep quality on depressive symptoms and suicidal ideation amongst Japanese freshmen.Methods. This cross-sectional data was derived from the baseline survey of the Enhancement of Q-University Students Intelligence (EQUSITE) study conducted from May to June, 2010. A total of 2,631 participants were recruited and completed the following self-reported questionnaires: the Pittsburgh Sleep Quality Index (PSQI), the Center for Epidemiologic Studies Depression Scale (CES-D), and the original Health Support Questionnaires developed by the EQUSITE study research team.Results. Of 1,992 participants eligible for analysis, 25.5% (n=507) reported depressive symptoms (CES-D total score ≥ 16), and 5.8% (n=115) reported suicidal ideation. The present study showed that late bedtime (later than 01:30), sleep-onset latency (≥30 minutes), and poor sleep quality showed a marginally significant association with depressive symptoms. Poor sleep quality was seen to predict suicidal ideation even after adjusting for depressive symptoms.Conclusion. The current study has important implications for the role of bedtime in the prevention of depressive symptoms. Improving sleep quality may prevent the development of depressive symptoms and reduce the likelihood of suicidal ideation.

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0524 Web-Delivered CBT for Insomnia Intervention Improves Sleep Among Adults with Insomnia and Depressive Symptoms

SLEEP ◽

10.1093/sleep/zsaa056.521 ◽

2020 ◽

Vol 43 (Supplement_1) ◽

pp. A200-A201

Author(s):

P J Batterham ◽

H Christensen ◽

F P Thorndike ◽

L M Ritterband ◽

R Gerwien ◽

...

Keyword(s):

Depressive Symptoms ◽

Sleep Quality ◽

Large Scale ◽

Behavioral Therapy ◽

Controlled Trial ◽

Sleep Onset ◽

Sleep Diary ◽

Sleep Onset Latency ◽

Sleep Diaries

Abstract Introduction Cognitive behavioral therapy for insomnia (CBT-I) is the first line recommended treatment for adults with chronic insomnia. In a prior randomized controlled trial (RCT), data showed web-delivered CBT-I (SHUTi) reduced insomnia severity as well as symptoms of depression, among adults with insomnia and elevated depressive symptoms. The present study aimed to further evaluate the effectiveness of web CBT-I to improve sleep outcomes as measured by prospectively entered sleep diaries in this same sample. Methods A large-scale RCT (N=1149) of Australian adults with insomnia and depressive symptoms compared a 9-week, web CBT-I therapeutic with an attention-matched web program at baseline, posttest and 6-, 12-, and 18-month follow-ups. Although depression outcomes have been presented previously, the online sleep-diary derived variables have not yet been presented, including sleep-onset latency (SOL), wake after sleep onset (WASO), sleep efficiency (SE), number of awakenings, sleep quality, and total sleep time (TST). Sleep diaries were entered online for 10 days at each assessment period. Results Data showed web CBT-I participants demonstrated greater reductions from baseline to posttest compared with control for the following sleep variables: SOL (LS mean difference [95% CI]=-22.3 min [-29.2, -15.3]; p<.0001), WASO (-17.8 min [-23.4, -12.3]; p<.0001), and number of awakenings (-0.38 [-0.68, -0.09]; p=.0113). Web CBT-I also showed greater improvements in SE (9.18% [7.25%, 11.10%]; p<.0001) and sleep quality (0.41 [0.30, 0.53]; p<.0001) from baseline to posttest compared with control. TST was not significantly different between groups at posttest or 6-month follow-up, although it improved over baseline at 12 (18.73 min [7.39, 30.07]; p=.0013) and 18 months (23.76 min [9.15, 38.36]; p=.0015) relative to control. All other significant sleep treatment effects were maintained in the treatment arm at 6, 12, and 18-month follow-up. Conclusion Data showed web CBT-I produced lasting improvements in sleep outcomes among adults with insomnia and elevated depressive symptoms. Support Clinical trial ACTRN12611000121965 was funded by the Australian National Health and Medical Research Council. The statistical analysis described here was funded by Pear Therapeutics, Inc and conducted by Provonix.

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173 The Bidirectional Relationships Between Sleep, Psychological Stress, and Negative Mood in Daily Life among Healthy Latinx Adults

SLEEP ◽

10.1093/sleep/zsab072.172 ◽

2021 ◽

Vol 44 (Supplement_2) ◽

pp. A70-A71

Author(s):

Carmela Alcantara ◽

Luciana Giorgio ◽

Sarah Diaz ◽

Melanie Morris ◽

Yun He ◽

...

Keyword(s):

Sleep Quality ◽

Psychological Stress ◽

Sleep Duration ◽

Depressed Mood ◽

Daily Life ◽

Negative Mood ◽

Self Report ◽

Daily Stress ◽

Wrist Actigraphy ◽

Perceived Sleep Quality

Abstract Introduction While psychological stress is adversely linked to sleep, the bidirectional and temporal relationships between sleep and psychological stress in the context of daily life are largely understudied, particularly among Latinxs. We examined the bidirectional relationships between daily sleep duration, sleep quality, perceived stress, and negative mood in Latinx adults. Methods Between 2016-2019, healthy Latinxs (N=42), defined as those without any major physical or psychiatric morbidities, and free from polysomnography-assessed sleep disorders, were recruited from a community sample in New York. Participants naïve to study hypotheses completed 40 consecutive days of actigraphy and ecological momentary assessment of psychological stress and negative mood (depressed, anxious mood) using a 0 (not at all) to 10 (extremely) scale, contributing 1713 observations. Daily sleep duration was measured via wrist-actigraphy, and perceived daily sleep quality (1[very bad] to 4[very good]) was assessed via morning self-report. Sources of daily stress, including sociocultural stress, were collected once each evening. Multi-level modeling was used to examine within-person effects and temporal associations with adjustment for day of the week. Results Mean age=37.2 (SD=11.8), 69.1% women, 36.6% unemployed, 64.3% immigrant, and 38.1% Spanish-speaking. Non-specific stress (43%), work (28%), and family/relationship (21%) stress were the most common sources of daily stress. Discrimination and immigration stress were rarely reported as daily sources of stress (1.2%). Mean nightly sleep duration was 403.9 minutes (±81.3). Preliminary lagged linear mixed models indicated that a 60-minute increase in sleep duration during the night predicted a -.12 change in stress ratings (SE=.001,p<.0001) the next day, as well as -.06 change in anxious mood (SE=.001,p=.003). Better perceived sleep quality on a 4-point scale during the night predicted lower stress ratings (ß=-.11,SE=.05,p=.04) and less anxious mood (ß=-.13,SE=.05,p=.01) the next day. A one-point higher rating of depressed mood during the day predicted a -.03 decrease in perceived sleep quality that night (SE=.01,p<.05). Conclusion Overall, these results imply distinct associations of sleep with both anxiety and depressed mood. Longer sleep duration and improved perceived sleep quality were associated with subsequent decreased stress and anxiety. Increased depressed mood predicted worse sleep quality that night. Future research should identify the mechanisms of action for these differential associations. Support (if any):

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Losing Sleep Over It: Sleep in Basketball Players Affected by Game But Not Training Workloads

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2019-0676 ◽

2020 ◽

Vol 15 (8) ◽

pp. 1117-1124

Author(s):

Jordan L. Fox ◽

Aaron T. Scanlan ◽

Robert Stanton ◽

Cody J. O’Grady ◽

Charli Sargent

Keyword(s):

Heart Rate ◽

Sleep Quality ◽

Sleep Duration ◽

Sleep Onset ◽

Onset Time ◽

Rating Of Perceived Exertion ◽

Self Report ◽

Basketball Players ◽

Time In Bed ◽

The Impact

Purpose: To examine the impact of workload volume during training sessions and games on subsequent sleep duration and sleep quality in basketball players. Methods: Seven semiprofessional male basketball players were monitored across preseason and in-season phases to determine training session and game workloads, sleep duration, and sleep quality. Training and game data were collected via accelerometers, heart-rate monitors, and rating of perceived exertion (RPE) and reported as PlayerLoad™ (PL), summated heart-rate zones, and session RPE (sRPE). Sleep duration and sleep quality were measured using wrist-worn activity monitors in conjunction with self-report sleep diaries. For daily training sessions and games, all workload data were independently sorted into tertiles representing low, medium, and high workload volumes. Sleep measures following low, medium, and high workloads and control nights (no training/games) were compared using linear mixed models. Results: Sleep onset time was significantly later following medium and high PL and sRPE game workloads compared with control nights (P < .05). Sleep onset time was significantly later following low, medium, and high summated heart-rate-zones game workloads, compared with control nights (P < .05). Time in bed and sleep duration were significantly shorter following high PL and sRPE game workloads compared with control nights (P < .05). Following low, medium, and high training workloads, sleep duration and quality were similar to control nights (P > .05). Conclusions: Following high PL and sRPE game workloads, basketball practitioners should consider strategies that facilitate longer time in bed, such as napping and/or adjusting travel or training schedules the following day.

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223 Sleep Duration and Sleep Quality in Chronic Cannabis Users and Non-Users

SLEEP ◽

10.1093/sleep/zsab072.222 ◽

2021 ◽

Vol 44 (Supplement_2) ◽

pp. A89-A89

Author(s):

Caroline Tse ◽

Alicia Stewart ◽

Omar Ordaz-Johnson ◽

Maya Herzig ◽

Jacqueline Gagnon ◽

...

Keyword(s):

Pilot Study ◽

Sleep Quality ◽

Sleep Duration ◽

Sleep Latency ◽

Sleep Onset ◽

The United States ◽

Cannabis Use ◽

Sleep Diary ◽

Random Factor ◽

Time In Bed

Abstract Introduction Cannabis use is on the rise in the United States, with 10% of adults reporting cannabis use in the past 30 days. Users commonly report consuming cannabis to improve sleep despite the lack of research that supports an association between cannabis use and sleep. In this pilot study we sought to examine objective measures of sleep duration and sleep quality among non- and chronic-cannabis users, and any patterns in relation to the time since consumption of cannabis. Methods Chronic cannabis users (cannabis used 2 or more times/week) and non-users provided up to 2-weeks of actigraphy (ActiGraph wGT3X-BT), worn on the wrist and verified by sleep diary. Chronic cannabis users also reported the date, time, amount, and route of their cannabis use. Mixed-effects models with participant as a random factor were used to examine: 1) the relationship between daily sleep parameters in cannabis non-users vs. users; and 2) the elapsed time between cannabis use and time in bed in chronic cannabis users. Results Chronic cannabis users (n=6) and non-users (n=7) collectively provided 151 nights of sleep. Participant characteristics (38.5% female; age, 25.8 years ± 4 years; BMI, 23.4 kg/m2 ± 3.4 kg/m2) did not significantly differ between groups. Cannabis use was associated with decreased total sleep time (measured in hours, ß=-0.58, p<0.001) and increased wake after sleep onset (WASO, ß=32.79, p=0.005), but not with the number of awakenings (ß=6.02, p=0.068). Among chronic cannabis users, cannabis use within two hours of bed was associated with increased sleep latency compared to use greater than two hours (ß=6.66, p=0.026). There was no association between time of cannabis use and WASO (p=0.621) or the number of awakenings (p=0.617). Conclusion In this pilot study of objectively measured sleep, we found that chronic cannabis use compared to non-use is associated with decreased sleep duration of otherwise healthy adults. Cannabis used closer to bedtime is associated with increased sleep latency. Additional studies that are able to assess the mode and dosage of use are needed to further understand the effects of cannabis and its components on sleep. Support (if any) KL2TR002370, AASM, Oregon Institute of Occupational Health Sciences

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Non-pharmacological sleep interventions for pediatric cancer patients and survivors: a systematic review protocol

Systematic Reviews ◽

10.1186/s13643-021-01724-3 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Peter L. Stavinoha ◽

Ineke M. Olsthoorn ◽

Maria C. Swartz ◽

Sara Nowakowski ◽

Stephanie J. Wells ◽

...

Keyword(s):

Systematic Review ◽

Sleep Quality ◽

Cancer Patients ◽

Pediatric Cancer ◽

Sleep Disturbances ◽

Sleep Onset ◽

Standard Of Care ◽

Sleep Diary ◽

Pharmacological Interventions ◽

Pediatric Cancer Patients

Abstract Background Sleep disturbances constitute a common complication in pediatric cancer patients and survivors and are frequently severe enough to warrant treatment. Suboptimal sleep has been associated with decreased emotional well-being and cognitive functioning and increased behavioral problems. Standardized guidelines for non-pharmacological sleep interventions for adults with cancer exist, but no standard of care intervention or standard guidelines are available to guide such intervention in pediatric cancer patients and survivors. Therefore, effective behavioral interventions for improving sleep quality need to be identified. The objective of the review is to evaluate the effect of non-pharmacological sleep interventions on sleep quality in pediatric cancer patients and survivors. Methods The review will consider studies that include children and adolescents between 0 and 18 years diagnosed with cancer or who have a history of cancer who have non-respiratory sleep disturbance. We will include experimental and quasi-experimental studies evaluating non-pharmacological interventions such as psychological interventions, technical/device interventions, interventions targeting physical activity, and complementary and alternative medicine interventions (e.g., yoga, massage, music). Interventions involving medications, ingestible supplements, products purported to work through absorption, and medical devices will be excluded. Primary outcome will be sleep quality as measured by methods including retrospective ratings, daily sleep diary, and validated questionnaires. Secondary outcomes will include total sleep time, sleep onset latency, wake after sleep onset, daytime sleepiness, and daytime sleep duration (naps) as measured by retrospective ratings, daily sleep diary, validated questionnaires, and/or actigraphy. Databases will include MEDLINE (Ovid), EMBASE (Ovid), Cochrane Library, CINAHL (Ebsco), and PsycINFO (Ovid) and will be queried from database inception to present. Two reviewers will independently screen all citations, full-text articles, and extract data. The study methodological quality will be assessed using Joanna Briggs Institute (JBI) critical appraisal tools. Data will be extracted and findings pooled and synthesized using a meta-aggregation approach via the JBI System for the Unified Management, Assessment, and Review of Information (SUMARI). If feasible, we will conduct random effects meta-analysis. Additional analyses will be conducted to explore the potential sources of heterogeneity (e.g., methodological quality, study design, outcome measures). Discussion This systematic review will synthesize and consolidate evidence on existing non-pharmacological interventions to improve sleep in pediatric cancer patients and survivors. Findings may help inform practitioners working with pediatric cancer patients and survivors experiencing sleep disturbances and is intended to identify gaps and opportunities to improve methodical quality of further non-pharmacological sleep intervention research in this population toward developing an eventual standard of care. Systematic review registration PROSPERO CRD42020200397.

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142 Prenatal Sleep Quality and Infant Sleep: A Longitudinal Study

SLEEP ◽

10.1093/sleep/zsab072.141 ◽

2021 ◽

Vol 44 (Supplement_2) ◽

pp. A58-A59

Author(s):

Rebecca Burdayron ◽

Marie-Helene Pennestri ◽

Elizabeth Keys ◽

Lianne Tomfohr-Madsen ◽

Gerald Giesbrecht

Keyword(s):

Sleep Quality ◽

Sleep Duration ◽

Gestational Age ◽

Sleep Onset ◽

Depression Scale ◽

Future Research ◽

Poor Sleep ◽

Infant Sleep ◽

Maternal Sleep ◽

Sleep Parameters

Abstract Introduction Poor sleep quality is common during pregnancy and can increase the risk of adverse obstetric and fetal outcomes. Existing research on the association between prenatal sleep and infant sleep is scarce and has focused on other aspects of prenatal sleep such as sleep duration, chronotype, and insomnia symptoms. To our knowledge, no studies have examined the association between prenatal sleep quality and infant sleep outcomes. Thus, this study aimed to investigate whether maternal sleep quality during pregnancy was prospectively associated with infant sleep dimensions, independent of relevant covariates. Methods Participants were a subset of 272 mother-infant dyads enrolled in an ongoing cohort study. Maternal prenatal sleep quality was assessed with the Pittsburgh Sleep Quality Index (PSQI) in early to mid- (M gestational age = 15.12 ± 3.56 weeks) and late- (M gestational age = 32.44 ± 0.99 weeks) pregnancy. Mothers completed the Brief Infant Sleep Questionnaire (BISQ) at 3, 6, and 12 months postpartum. The following infant sleep parameters were assessed: sleep duration (day, night, 24-hour), number of night awakenings, and wake after sleep onset. Prenatal depressive symptoms were assessed with the Edinburgh Postnatal Depression Scale (EPDS) at both pregnancy time points. Other covariates included maternal age at enrollment, infant age, parity, and co-sleeping status. Results Generalized estimating equations (GEE) models revealed that poorer maternal sleep quality during early-to-mid pregnancy did not significantly predict infant sleep parameters after adjustment for covariates (p > .05). However, in late pregnancy, poorer maternal sleep quality significantly predicted shorter 24-hour sleep duration and longer wake after sleep onset, but not daytime sleep duration, nighttime sleep duration, and number of night awakenings (p < .05). Conclusion Study findings advance our understanding of the prospective link between maternal prenatal sleep quality and infant sleep. Results indicate that maternal sleep quality during late gestation may play a role in the development of infant sleep patterns. These findings have important implications for intervention efforts targeting maternal sleep quality during pregnancy. Future research should use objective measures of sleep, such as actigraphy, to better elucidate the effects of prenatal sleep quality on infant sleep outcomes. Support (if any) The Canadian Institutes of Health Research (CIHR)

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Consecutive Days of Racing Does Not Affect Sleep in Professional Road Cyclists

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2021-0102 ◽

2021 ◽

pp. 1-4

Author(s):

Charli Sargent ◽

Shona L. Halson ◽

David T. Martin ◽

Gregory D. Roach

Keyword(s):

Sleep Duration ◽

Sleep Onset ◽

Self Report ◽

Activity Monitors ◽

Sleep Diaries ◽

Time In Bed ◽

Road Cycling ◽

Offset Time ◽

The Impact

Purpose: Professional road cycling races are physiologically demanding, involving successive days of racing over 1 to 3 weeks of competition. Anecdotal evidence indicates that cyclists’ sleep duration either increases or deteriorates during these competitions. However, sleep duration in professional cyclists during stage races has not been assessed. This study examined the amount/quality of sleep obtained by 14 professional cyclists competing in the Australian Tour Down Under. Methods: Sleep was assessed using wrist activity monitors and self-report sleep diaries on the night prior to start of the race and on each night during the race. The impact of each day of the race on sleep onset, sleep offset, time in bed, sleep duration, and wake duration was assessed using separate linear mixed effects models. Results: During the race, cyclists obtained an average of 6.8 (0.9) hours of sleep between 23:30 and 07:27 hours and spent 13.9% (4.7%) of time in bed awake. Minor differences in sleep onset (P = .023) and offset times (P ≤.001) were observed during the week of racing, but these did not affect the amount of sleep obtained by cyclists. Interestingly, the 3 best finishers in the general classification obtained more sleep than the 3 worst finishers (7.2 [0.3] vs 6.7 [0.3] h; P = .049). Conclusions: Contrary to anecdotal reports, the amount of sleep obtained by cyclists did not change over the course of the 1-week race and was just below the recommended target of 7 to 9 hours for adults.

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Sleep misestimation among older adults suffering from insomnia with short and normal objective sleep duration and the effects of cognitive behavior therapy

SLEEP ◽

10.1093/sleep/zsaa250 ◽

2020 ◽

Author(s):

Nicole Lovato ◽

Gorica Micic ◽

Leon Lack

Keyword(s):

Older Adults ◽

Sleep Duration ◽

Behavior Therapy ◽

Cognitive Behavior Therapy ◽

Sleep Onset ◽

Sleep Diary ◽

Cognitive Behavior ◽

Sleep Onset Latency ◽

Normal Sleep

Abstract Study Objectives Compare the degree of sleep misestimation in older adults with insomnia presenting with objectively short relative to normal sleep duration, and investigate the differential therapeutic response on sleep misestimation between the proposed sleep duration phenotypes to cognitive-behavior therapy for insomnia (CBTi). Methods Ninety-one adults (male = 43, mean age = 63.34, SD = 6.41) with sleep maintenance insomnia were classified as short sleepers (SS; <6 h total sleep time [TST]) or normal sleepers (NS; ≥6 h TST) based on one night of home-based polysomnography. Participants were randomly allocated to CBTi (N = 30 SS, N = 33 NS) or to a wait-list control condition (N = 9 SS, N = 19 NS). Sleep misestimation was calculated as the difference scores of subjective (sleep diary reported) and objective (derived from actigraphy) sleep onset latency (SOL), wake after sleep onset (WASO), and TST at pre- and post-treatment, and 3-month follow-up. Results Prior to treatment, perception of SOL, WASO, and TST did not differ between patients with objectively short sleep duration relative to those with objectively normal sleep duration. Patients’ perception of WASO and TST, improved immediately following treatment and at 3-month follow-up relative to the waitlist group. These improvements did not differ significantly between those with short or normal objective sleep duration prior to treatment. Conclusions The degree of sleep misestimation is similar for older adults suffering from chronic insomnia with short or normal objective sleep duration. Irrespective of objective sleep duration prior to treatment, CBTi produces significant improvements in sleep perception. Clinical Trial Registration Number ACTRN12620000883910

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