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Sleep (system call)

About: Sleep (system call) is a research topic. Over the lifetime, 2633 publications have been published within this topic receiving 27806 citations. The topic is also known as: Sleep() & sleep().


Papers
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Journal ArticleDOI
TL;DR: Wang et al. as discussed by the authors investigated the sleep quality and changes in sleep patterns before and during the outbreak in the general population in China and to determine factors related to sleep quality.

8 citations

Patent
03 Oct 2016
TL;DR: In this article, a sleep sensing system comprising a sensor to obtain real-time information about a user, a sleep state logic to determine the user's current sleep state based on the realtime information, and a sound output system to output sounds to guide the user from the current sleep states to the optimal next sleep states.
Abstract: A sleep sensing system comprising a sensor to obtain real-time information about a user, a sleep state logic to determine the user's current sleep state based on the real-time information. The system further comprising a sleep stage selector to select an optimal next sleep state for the user, and a sound output system to output sounds to guide the user from the current sleep state to the optimal next sleep state.

8 citations

Patent
11 Jan 2017
TL;DR: In this paper, a sleep monitoring system consisting of a confirmation unit, a start unit and a turn-off unit is proposed. But the system is not suitable for wearable equipment.
Abstract: The invention relates to a sleep monitoring method based on wearable equipment and a sleep monitoring system based on wearable equipment, and the sleep monitoring method and the sleep monitoring system are applied to the wearable equipment. The sleep monitoring system comprises a confirmation unit, a start unit and a turn-off unit, wherein the confirmation unit is used for confirming that the motion amplitude of a user wearing the wearable equipment is less than or equal to a preset first threshold; the start unit is used for starting up a heart rate detection function, judging whether sleep of the user is deep sleep or not; the turn-off unit is used for turning off the heart rate monitoring function if the sleep of the user is deep sleep. Consequently, the sleep monitoring method based on the wearable equipment and the sleep monitoring system based on the wearable equipment have the advantages that action detection and heart rate monitoring are combined so as to be applied to sleep monitoring, so that not only can judgment accuracy be improved, but also electrical energy is greatly saved, and the user experience level of the product is improved.

8 citations

Journal ArticleDOI
TL;DR: This paper formulated the system performances of the watchful sleep mode in terms of the power consumption and the state transition delay by using the state probability based on arrival traffic profile and compared it with the cyclic sleep mode under the same conditions.
Abstract: The energy consumption in data communication networks has drawn global attention due to the ever-increasing of broadband users. In this paper, we formulated the system performances of the watchful sleep mode in terms of the power consumption and the state transition delay by using the state probability based on arrival traffic profile. And we compared the performances of the watchful sleep mode with the cyclic sleep mode under the same conditions. For above two conflicting performance indexes, the Sleep period is a key factor. Thus we designed the Cost function to determine the balanced Sleep periods for the certain requirements of power saving and state transition delay. And the simulation results verified the balanced Sleep period can greatly improves the system performances.

8 citations

Journal Article
01 Jan 2011-Sleep
TL;DR: Increased vigilance during the night causes sleep to be less efficient and less qualitative as shown by an increase in wake-activity and a distorted sleep perception.
Abstract: Nightly interventions, prevalent to on-call situations, can have negative consequences for those involved. We investigated if intervention-free-on-call-nights would also mean disturbance-free-sleep for people on-call. 16 healthy sleepers spent three nights in the laboratory: after a habituation night, reference and on-call night were counterbalanced. Subjects were instructed to react to a sound, presented at unpredictable moments during the night. Participants were unaware of the fact that the sound would never be presented. These vigilance instructions resulted in more subjective wake after sleep onset (WASO), lower subjective sleep efficiency and significantly lower experienced sleep quality. Objectively, a longer sleep onset, an increased amount of WASO and significantly lower sleep efficiency were observed. During deep sleep, significantly more beta activity was recorded. Apart from real nightly interventions increased vigilance during the night causes sleep to be less efficient and less qualitative as shown by an increase in wake-activity and a distorted sleep perception.

8 citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202422
20233,172
20225,977
2021175
2020191
2019236