Laboratory of Sleep/Wake Neurobiology, the Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences, Moscow, Russia.
Research Group for Math-Modeling of Biomedical Systems, Research Institute for Molecular Biology and Biophysics of the Federal Research Centre for Fundamental and Translational Medicine, Novosibirsk, Russia.
Sleep Breath. 2023 May;27(2):709-719. doi: 10.1007/s11325-022-02648-5. Epub 2022 Jun 3.
Many people believe they sleep for longer time on weekend nights to make up for sleep lost on weekdays. However, results of simulations of risetimes and bedtimes on weekdays and weekends with a sleep-wake regulating model revealed their inability to prolong weekend sleep. In particular, they predicted identical durations of weekend sleep after weeks with relatively earlier and relatively later risetime on weekdays. In the present study, this paradoxical prediction was empirically confirmed.
Times in bed were calculated from weekday and weekend risetimes and bedtimes in pairs of samples of students with early and later school start time and in subsets of samples from 7 age groups with weekday risetime earlier and later than 7:00 a.m.
Among 35 pairs of students, mean age ± standard deviation was 14.5 ± 2.9 years and among the age group samples, 21.6 ± 14.6 years. As predicted by the simulations, times in bed on weekends were practically identical in the samples with early and later school start time and in two subsets with earlier and later weekday risetime.
The model-based simulations of sleep times can inform an individual about an amount of irrecoverable loss of sleep caused by an advance shift of wakeups on weekdays.
许多人认为他们在周末晚上会睡更长时间，以弥补工作日失去的睡眠。然而，睡眠-觉醒调节模型对工作日和周末的起床时间和就寝时间进行模拟的结果表明，它们无法延长周末的睡眠时间。特别是，它们预测在工作日起床时间较早和较晚的几周后，周末的睡眠时间相同。在本研究中，这一矛盾的预测得到了实证证实。
通过对上学时间较早和较晚的两组学生样本，以及工作日起床时间早于和晚于 7 点的 7 个年龄组的样本，计算了工作日和周末的卧床时间。
在 35 对学生中，平均年龄为 14.5 ± 2.9 岁，年龄组样本中为 21.6 ± 14.6 岁。正如模拟预测的那样，在上学时间较早和较晚的两组样本中，以及在工作日起床时间较早和较晚的两个子集中，周末的卧床时间实际上是相同的。
基于模型的睡眠时间模拟可以告知个体工作日提前起床会导致多少不可恢复的睡眠损失。
