How the position couples sleep in reveals the strength of the relationship

Partners who sleep less than an inch apart are far more likely to be happy together than those maintaining a gap wider than 30 inches, researchers have found.

The Couples who spend the night making physical contact are happier than those who do not touch.

The study found that 42 % of couples sleep back to back, 31 % face the same direction and just 4 % face one another.

Around 34 % sleep touching and 12 % spend the night less than an inch apart, while 2 % are separated by more than 30 inches