A National Association of Home Builders survey in 2015 predicted that 60 per cent of upscale homes in the U.S. would in future be planned with two master bedrooms. But even in Britain, more and more couples have begun sleeping in separate rooms.

One in six British couples choose to sleep in separate bedrooms, according to a mattress company, which conducted research after noticing a rise in internet searches for single mattresses.

More than a quarter of U.S. couples — 26 percent — report sleeping more soundly when they are alone in a bed, according to another survey by the Better Sleep Council. And as one housing developer told Southwest Florida’s Fox 4, somewhere between 15 to 20 percent of his customers show interest in the “dual master bed concept.”

Sleeping separately is not an indication of marital failutre. Instead, it is a solution for couples who have sleeping troubles.

Research shows that people who do not get enough sleep — whether because of a partner who snores, kicks or steals all of the covers, or anything else — are more likely to angrily snap at others and aren’t the best decision makers, making the lack of sleep a recipe for marital problems.

So while separate sleeping lairs may seem unconventional, it is a solution for many marital problems.

Scientists at Florida State University revealed that having seven or eight hours of sleep a night means partners are less likely to focus on the negative aspects of their relationship and are more inclined to think about the bigger picture.

They asked 68 newly wed couples to record sleep patterns for a week. They also kept a diary on how they felt about their marriage and how rows affected their view of the relationship.

Husbands benefited most from a proper night’s sleep. Even on days when they had fallen out with their wives, they felt upbeat about their marital status – provided they had been able to get a good night’s rest.