Sleep

Artificial light at night not only keeps reef fish awake, it also inflicts DNA damage on their brain neurons, researchers at Bar-Ilan University and Harvard University report in Current Biology. The study, led by Shachaf Ben-Ezra, is the first to directly link light-pollution-driven sleep disruption to neuronal genomic instability in a wild vertebrate, raising questions […]

Nightmare disorder has long been considered a REM parasomnia, but new research from King’s College London reveals that its signature may lie in the NREM sleep microarchitecture instead. In a study of 26 adults with nightmare disorder and 32 controls, published in NPJ Biological Timing and Sleep, Istvan Papp and colleagues found that people with […]

Getting enough sleep and regular exercise may directly suppress the expansion of mutant blood-cell clones that contribute to cardiovascular disease, according to a new commentary in Nature Reviews Cardiology highlighting a landmark study from Nature. The commentary, by Karina Huynh, draws on original research by Gerhardt et al. published in Nature in 2026, which found […]

An editorial by researchers from Flinders University, the University of Arizona, and the University of Padova charts the current landscape and future directions for consumer sleep technologies (CSTs), the wearable and nearable devices millions of people use nightly to track their sleep. Writing in Sleep Advances, Hannah Scott, Michael Grandner, and Nicola Cellini address the […]

Chronic sleep deprivation triggers a temporally ordered breakdown of the gut-liver axis, progressing from probiotic depletion to full-scale inflammatory activation over three weeks, researchers at Kunming Medical University report in Frontiers in Microbiology. Using a platform-based sleep deprivation model in C57BL/6J mice, the team applied multi-omics analysis, combining absolute-quantification gut microbiome sequencing with untargeted hepatic […]

Acute sleep restriction produces fundamentally opposite effects on brain network connectivity in young versus older adults, according to a study published in Imaging Neuroscience. The finding challenges the assumption that ageing simply dampens the brain’s response to sleep loss and instead suggests a compensatory mechanism unique to the older brain. Researchers at Simon Fraser University, […]

1. [Effectiveness of Acupressure on Anxiety, Fatigue, and Sleep Quality Among Operating Room Personnel: A Randomized Controlled Trial] Health Sci Rep. 2026 Jun 19;9(6):e72680. Source: PubMed Sleep 2. [Artificial intelligence applications in CBCT-based assessment of craniofacial airway volume and shape in sleep-disordered breathing: a systematic review] PeerJ. 2026 Jun 17;14:e21289. Source: PubMed Circadian 3. [Gender […]

Automated sleep staging using only heart rate variability data can classify sleep stages with nearly 80% accuracy, according to a new study in the National Medical Journal of India that tested both random forest and deep learning approaches on over 600 subjects. The research, led by Suvradeep Chakraborty (Nil Ratan Sircar Medical College, Kolkata) and […]

A new mathematical model published in Biosystems unifies how the brain tracks sleep debt across both acute total sleep deprivation and chronic partial sleep restriction, explaining approximately 90% of variance in behavioral performance across both conditions. Federica Conti of Parker University’s Human Performance Center in Dallas developed the model to address a long-standing problem in […]

The Journal Impact Factor has long been the default metric for evaluating research quality, but a new analysis of nearly 4,000 articles in sleep medicine reveals that it tells researchers almost nothing about how an individual paper will perform. A team led by Salman Hussain (University of Ottawa, McGill University, Stanford University, and the University […]