Finally, scientists have found a deceit-proof way to tell if your wife is happy with her marriage. When you wake in the night, see if she is also awake. 
According to researchers at the University of Pittsburgh, couples in which the women are happy are more likely to share similar sleep cycles, waking and sleeping throughout the night at the same times. Science Daily reports that the researchers, who studied the sleep patterns 46 couples over a 10-day period, found that “overall synchrony in sleep-wake schedules among couples was high, as those who slept in the same bed were awake or asleep at the same time about 75 percent of the time. When the wife reported higher marital satisfaction, the percent of time the couple was awake or asleep at the same time was greater.” Read more from Science Daily.
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Sunday, April 20, 2025
This article made me sleepy.
I think I’ll go take a nap.
I hope I wake up in time to find my wife sleeping, also.
But not with someone else, that would be a good indication that she might be dissatisfied with our marriage.
Good comment! Made me laugh.
46 couples and 10 days. You could prove, or disprove, virtually anything with an all-encompassing sample like that. If you are in the same bed, when one wakes and moves, the other is likely to wake, unless a heavy sleeper or on some kind of medication.