The emotional and psychological dynamics within a couple can also translate directly into disparate sleep outcomes. Studies have suggested an asymmetrical relationship between daytime interactions and nighttime rest. For women, the quality of her daytime interaction with her partner is often a significant predictor of how soundly she sleeps that night—meaning marital strife or emotional tension can directly lead to a sleepless night. Conversely, a man's poor sleep is more likely to predict negative interactions with his partner the following day, suggesting women's sleep is more reactive to the relationship's immediate emotional climate.
