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Study Shows Association Between Sleep and Sperm Quality

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FertilityAuthority,  April 29, 2013

April 29, 2013

New research published in the American Journal of Epidemiology says men who don’t get enough sleep could also be at risk of decreased sperm count.

The study is a first of its kind to examine the association between sleep and sperm quality. Other studies have examined the association between sleep and men’s health risks, or even sexual activity.

Danish researchers recruited 953 men participating in a fitness evaluation for military service in Copenhagen between January 2008 and June 2011. Each participant provided a semen sample, blood draw, and underwent a physical examination and health questionnaire about sleep disturbances.

Men with greater levels of sleep disturbance had 29% lower sperm concentration and 1.6% decreased morphology than men with better quality sleep.

This study further suggests the impact of sleep on fertility (we know women’s fertility is compromised by poor sleep quality and duration). This data is just another reason for couples who are trying to conceive to get to bed!

For more information on sperm quality and quantity, check out this Semen Analysis Reference Guide on


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