Aims and ScopeSLEEP SCIENCE is a free open access journal committed to publish scientific studies focusing on sleep, chronobiology, and related subjects.
It is the oﬃcial journal of the Brazilian Sleep Association (ABS – Associação Brasileira do Sono) and the Latin American Federation of SleepSocieties (FLASS – Federación Latinoamericana de Sociedades del Sueño).
SLEEP SCIENCE welcomes original studies, review articles, short communications, commentaries, and case reports in pre-clinical and clinicalresearch regarding to sleep physiology and neurobiology,
sleep deprivation/restriction, sleep disorders, and biologicalrhythms.

Instructions to Authors
Submission guidelines
Submissions to Sleep Science should be performed electronically byaccessing the journal’s website.
Only manuscripts which have not been published in any otherjournal, in print or electronically, will be considered. A plagiarism tool
is applied in all manuscripts submitted to Sleep Science to ensure theoriginality of the text.
Manuscripts should be written in English (American or British usageis accepted, but not a mixture of these). It is strongly recommended
that manuscripts written by non-native English language speakers arereviewed by a native speaker prior to submission.

Ethical standards
Studies involving humans or animals should include the protocol
approval number issued by the institutional ethics committee.
Information regarding the written informed consent from all subjects(individually) should be stated in the methods section of clinical studies. Manuscripts without ethics committee approval or the descriptionof signed informed consent will not be considered for publication bySleep Science.

Conflict of Interest
All authors should disclose any financial interests or activities related
to commercial or other sources of funding. A conflict of interest statement should be included in the manuscript in regards to all the authors
who contributed to the development of the study. If all authors haveno conflict of interest, it should be disclosed in the manuscript as it
follows: The authors report no conflict of interest.

Submission fee
Sleep Science is a peer reviewed and open access journal with no fees
for submission or publication.

Manuscript categories
Except for Correspondences, all categories should contain an abstract andreferences section.
Original Articles: original scientific investigations which contain
unpublished data and have significant relevance for the field of sleepand chronobiology research. This type of manuscript should comprisethe following sections: abstract (≤250 words), introduction, materialand methods, results, discussion, conclusion(s) and references. Originalarticles should not exceed 5000 words.
Short Communication: a concise report of an original investigation
and/or the preliminary findings of a study. This type of manuscript
should not exceed 3000 words and should comprise the following sections: abstract (100–150 words), introduction, material and methods,results, discussion, conclusion(s) and references.
Reviews: manuscripts that collect published data from the literature
on an area of interest for sleep and chronobiology researchers and present a broad, critical analysis of the subject. Illustrations summarizing
the main concepts of the Reviews are highly recommended. This typeof manuscript should not exceed 5000 words and should compriseabstract (≤250 words) and references. Systematic reviews or metanalysis should include a brief introduction, methodology, brief results,discussion, conclusion(s) and references. It is strongly recommended
to authors follow the PRISMA checklist and provide the PRISMA flow
diagram of the study (https://www.prisma-statement.org/).
Overview: this category should present the point of view of theauthor(s) about a high impact topic in sleep or chronobiology ofinterest to sleep practitioners. It should include an abstract (100–150words) and the main text should not exceed 1500 words.
Case report: a clinical case of special significance to sleep practitioners and research community. It should include an abstract (100–150words), report of the case, discussion and conclusion. This type ofmanuscript should not exceed 1500 words.
Correspondence articles: correspondence articles are letters addressed to the Editor, which are intended to promote scientific debate
about a relevant subject in the sleep and chronobiology field, or discuss
the results of a manuscript recently published in Sleep Science. Correspondences should not exceed 1000 words.

Article Structure
Title page: this should contain the title, a running title, authors’ names
and aﬃliations, the corresponding author’s email, and a conflict ofinterest statement.
Abstract and keywords: the abstract should be a brief description of
the study outlining its aim(s), methods, results, and conclusion(s). It
should be concise and written objectively so that the reader can easily
understand the study. There should be 3 to 6 keywords in English thatdefine the main subjects of the study.
Tables and Figures: these should be in black and white or in grayscales, on separate pages. Photographs depicting surgical procedures,
as well as those showing the results of exams or biopsies, will be considered for publication in color, with no additional cost to the authors.
Each table and figure should be numbered with an Arabic numeral corresponding to its citation in the text. Table legends should accompany
the respective tables in the main manuscript file. Figure legends shouldbe inserted on a separate page, after the references. All abbreviations,acronyms, and symbols should be detailed below each table or figure
in which they appear.
Abbreviations: they should be used sparingly and limited only toabbreviations that are widely accepted. All abbreviations should bedefined at first use.
References: these should be listed in their order of appearance in thetext and numbered consecutively with Arabic numerals. Referencesshould follow the Vancouver Style (see examples below). For manuscripts with more than 6 authors, list the first 6 authors, followed by‘et al.’Examples:Journal articles
Tufik S, Lindsey CJ, Carlini EA. Does REM sleep deprivation induce a
supersensitivity of dopaminergic receptors in the rat brain? Pharmacology. 1978;16(2):98–105.
Abstracts
Moreno CRC, Carvalho FA, Matuzaki LA, Louzada FM. Eﬀects of irregular working hours on sleep and alertness in Brazilian truck drivers[abstract]. Sleep. 2002;25:399.
Book chapter
Tufik S & Andersen ML. Sono normal. In: Andersen ML, editor. Sono: Da
neurobiologia à prática médica. São Paulo: Di Livros Editora Ltda; 2022.
P. 25–51.
Oﬃcial publications
World Health Organization. Guidelines for surveillance of drug resistance in tuberculosis. 2nd ed. Geneva: WHO; 2003. p. 1–24.
ThesisTufik SB. Distúrbios respiratórios do sono: evolução natural e fatores
associados observados em um estudo longitudinal prospectivo de base
populacional [tese]. São Paulo: Universidade Federal de São Paulo;
2020.
Electronic publications
Abood S. Quality improvement initiative in nursing homes: the ANA
acts in an advisory role. Am J Nurs [Internet]. 2002 [cited 2002 Aug12];102(6):[about 3 p.]. Available from: http://www.nursingworld.org/AJN/2002/june/Wawatch.htm
Homepages/URLs
Cancer-Pain.org [Internet]. New York: Association of Cancer Online

Resources, Inc., c2000-01 [updated 2002 May 16; cited 2002 Jul 9].
Available from: http://www.cancer-pain.org/

4. All participants provided signed informed consent forms, in thecase of medical research in humans.

Clinical Trials

Changes to authorship

Sleep Science accepts clinical trials for publication only if they have received an identification number from the Clinical Trial Registry, or froma similar clinical trial database, validated by the criteria established byWorld Health Organization (WHO) and International Committee ofMedical Journals Editors (ICMJE). For more information: https://www.
who.int/clinical-trials-registry-platform/network/trial-registration.

Authors should provide the definitive list of authors at the time ofthe submission. Any addition or removal of authors will only be madebefore the manuscript has been accepted and only if approved by thejournal Editor. To request a change, the corresponding author must
provide the following to the Editor: (a) the reason for the change inauthor list and (b) written confirmation (e-mail, letter) from all authorsthat they agree with the addition or removal. In the case of addition or
removal of authors, this includes confirmation from the author being
added or removed.

Submission checklist
It is requested that the authors strictly follow the editorial guidelines of
the journal.
For each manuscript submitted to Sleep Science, the authors should
ensure that:
1. The content of the manuscript has not been submitted for publication in another journal, book or electronically (except in theform of an abstract or as part of a published lecture or academic
thesis or as an electronic preprint) in English or in any other language and all authors have given their consent for the manuscript
to be published;
2. The authors’ conflicts of interests and any possible funding source
have been disclosed;
3. The experimental procedures were properly approved by theinstitutional ethics committee where the research was carriedout, if the investigation involves experiments in humans or otheranimals;Thieme PublishersAcquisitions Editor
Ana Bluhm

Production Coordinator
Paula Di Sessa Vavlis
paula.disessa@thieme.com.brInternCaroline Bianchi Ávila
carol.avila@thieme.com.br