Eveningness is related to men’s mating success

Sociosexuality, Morningness–Eveningness, and Sleep Duration

“…However, in a previous study, Randler et al (2012a) were unable to relate sleep duration to mating success, but M/E was a significant predictor of mating success. This is no real contrast, because Randler et al (2012a) focused on the aspects of behavior, such as number of partners, extra-pair matings, and age at loss of virginity. These aspects can all be summed up as (and are comparable with) a facet of the Behavior component of the SOI-R. And, similarly, the SOI-R Behavior was unrelated to sleep duration in the present study.…”

“…Interestingly, in a bird species, the pectoral sandpiper, Calidiris melanotos, the shortest sleepers also had the highest mating success (Lesku et al, 2012). However, in a previous study, Randler et al (2012a) were unable to relate sleep duration to mating success, but M/E was a significant predictor of mating success. This is no real contrast, because Randler et al (2012a) focused on the aspects of behavior, such as number of partners, extra-pair matings, and age at loss of virginity.…”

“…Is it the evening orientation that allows individuals to stay out long and, therefore, have more possibilities to meet and mate? Randler et al (2012a) provided some evidence that eveningness is an additional predictor of mating success, even when controlling for extraversion and propensity to stay out late. Thus, eveningness enables to stay out late, but is an important and unique variable in addition to this aspect.…”

“…This suggests that evening types follow a different and more sociosexually unrestricted mating strategy. Similarly, Maestripieri (2014) reported that evening type women were rather similar in their mating characteristics compared with evening men, suggesting that differences between the sexes in chronotype may not a be result from sexual selection, but rather that evening chronotype is related to sociosexuality independent of gender.However, it is yet unclear if eveningness is related to mating strategy in both sexes because most studies were based on men (Gunawardane et al, 2011;Piffer, 2010;Randler et al, 2012a). Second, the number of partners of extra-pair matings is only one aspect of sociosexuality, and others are Attitude and Desire (Penke & Asendorpf, 2008 in relation to M/E in only one study , which found that evening females were less sociosexually restricted than morning ones, whereas no relationship between sociosexuality and M/E was found in males.…”

The slow and fast life histories of early birds and night owls: their future- or present-orientation accounts for their sexually monogamous or promiscuous tendencies

“…Physiologically, the melatonin peak, temperature nadir, and cortisol peak all occur at an earlier time in morning-types compared to evening-types (e.g., Kerkhof & Van Dogen, 1996). In terms of personality traits, evening-types generally score high in extraversion (Díaz-Morales, 2007;Matthews, 1988;Randler et al, 2012) and in the dark triad traits (i.e., Machiavellianism, secondary psychopathology and exploitive narcissism; Jonason, Jones, & Lyons, 2013), while morning-types appear to be more conscientious and agreeable (Tsaousis, 2010), more cooperative with others (Díaz-Morales, 2007), more persistent in accomplishing their goals (Caci et al, 2005), and score higher in the personality meta-trait of stability (DeYoung, Hasher, Djikic, Criger, & Peterson, 2007). Evening-types also score higher than morning-types in impulsivity, novelty-seeking, and risk-taking (Caci, Robert, & Boyer, 2004;Caci et al, 2005;Killgore, 2007;Maestripieri, 2014;Muro, Gomá-i-Freixanet, & Adan, 2012;Tonetti et al, 2010).…”