Sleep-wake behaviour during the first 12 months of life and associated factors: a systematic review

ABSTRACT

This paper aims to provide a systematic review of the literature on the associated factors with infant sleep-wake behaviour during the first 12 months of life, namely (1) the factors positively and negatively associated with sleep-wake behaviour and (2) the factors positively and negatively affected by sleep-wake behaviour. This systematic review was based on a standard protocol constructed according with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement and included 146 papers. Two typologies of factors were found in the literature: factors positively and negatively associated with infant sleep-wake behaviour and effects of sleep-wake behaviour. Different factors were identified as being positively and negatively associated with the different sleep-wake behaviours and positively and negatively affected by the different sleep-wake behaviours during the first 12 months of life. Some inconsistent results could be explained by methodological differences between the studies.

KEYWORDS:

• Sleep-wake behaviour
• infant
• positive factors
• negative factors

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes on contributors

Cláudia Castro Dias is a PhD student at the School of Psychology University of Minho, Braga, Portugal.

Bárbara Figueiredo, PhD, is Professor at the School of Psychology, University of Minho, Braga, Portugal.

Additional information

Funding

This work was supported by FEDER Funds through the Programa Operacional Factores de Competitividade – COMPETE and by National Funds through FCT – Fundação para a Ciência e a Tecnologia under the project: PTDC/SAU/SAP/116738/2010 and SFRH/BD/113005/2015 PhD grant. This study was conducted at Psychology Research Centre (UID/PSI/01662/2013), University of Minho, and supported by the Portuguese Foundation for Science and Technology and the Portuguese Ministry of Education and Science through national funds and co-financed by FEDER through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653).