ArticleFrontiers in sleep2024
A pilot time-in-bed restriction intervention behaviorally enhances slow-wave activity in older adults.
Article in Frontiers in sleep, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Effects of repetitive transcranial magnetic stimulation on cognition through sleep slow-wave activity in older adults.Journal of neuroengineering and rehabilitation · 2026Trial
- The association between slow wave activity and memory improvement following cognitive-behavioral therapy for insomnia in older adults: A secondary analysis of a randomized clinical trial.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Trial
- Trial
- Network analysis of sleep disorders, anxiety, and loneliness among the community-dwelling older adults.Frontiers in public health · 2026Article
- Enhancing emotional intelligence through sleep therapy in high-stress professionals: a case-control study on efficacy and predictive factors.Frontiers in psychiatry · 2025Article
- Effects of short-term sleep reduction and aerobic exercise on metabolism and inflammation in healthy adults.Current research in physiology · 2025Article
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Authors and funding
9 authors.
Funding
Abstract
Introduction: Identifying intervention methods that target sleep characteristics involved in memory processing is a priority for the field of cognitive aging. Older adults with greater sleep efficiency and non-rapid eye movement slow-wave activity (SWA) (0.5-4 Hz electroencephalographic activity) tend to exhibit better memory and cognitive abilities. Paradoxically, long total sleep times are consistently associated with poorer cognition in older adults. Thus, maximizing sleep efficiency and SWA may be a priority relative to increasing mere total sleep time. As clinical behavioral sleep treatments do not consistently enhance SWA, and propensity for SWA increases with time spent awake, we examined with a proof-of concept pilot intervention whether a greater dose of time-in-bed (TiB) restriction (75% of habitual TiB) would increase both sleep efficiency and SWA in older adults with difficulties staying asleep without impairing memory performance. Methods: Participants were adults ages 55-80 with diary-reported sleep efficiency <90% and wake after sleep onset (WASO) >20 min. Sleep diary, actigraphy, polysomnography (PSG), and paired associate memory acquisition and retention were assessed before and after a week-long TiB restriction intervention ( Results: Subjective and objective sleep measures robustly improved in the TiB restriction group for sleep quality, sleep depth, sleep efficiency and WASO, at the expense of TiB and time spent in N1 and N2 sleep. As hypothesized, SWA increased robustly with TiB restriction across the 0.5-4 Hz range, as well as subjective sleep depth, subjective and objective WASO. Despite increases in sleepiness ratings, no impairments were found in memory acquisition or retention. Conclusion: A TiB restriction dose equivalent to 75% of habitual TiB robustly increased sleep continuity and SWA in older adults with sleep maintenance difficulties, without impairing memory performance. These findings may inform long-term behavioral SWA enhancement interventions aimed at improving memory performance and risk for cognitive impairments.
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