Marital relationship quality and sleep

Marital quality and the marital bed: Examining the covariation between relationship quality and sleep Review Article
Sleep Medicine Reviews, October 2007
This is an interesting research article trying to understand any association between the quality of marital relationship and sleep.For those who are married , understand those grey days when a heated argument, or doubt or incompatibility gave them sleepless nights, tossing and turning on the bed, that you share with your partner.

At least to me , it seems that there should be some association between the two variables.
for further insight read the article yourself.
I have provided the link.

"The majority of adults sleep with a partner, and for a significant proportion of couples, sleep problems and relationship problems co-occur, yet there has been little systematic study of the association between close relationships and sleep. The association between sleep and relationships is likely to be bi-directional and reciprocal—the quality of close relationships influences sleep and sleep disturbances or sleep disorders influence close relationship quality. Therefore, the purpose of the present review is to summarize the extant research on (1) the impact of co-sleeping on bed partner's sleep, (2) the impact of sleep disturbance or sleep disorders on relationship functioning, and (3) the impact of close relationship quality on sleep"

http://www.sciencedirect.com/science/article/pii/S1087079207000706