The University of Michigan researchers asked more than 500 men and women in relationships about the frequency and length of their cuddles and how the affection made them feel.
They were also asked about what they did when they cuddled, where they cuddled and when.
A cuddle was defined as intimate, physical and loving contact that does not involve sexual behaviour and that involves some degree of whole body touching, not just hand to hand or lips to lips. The scientists discovered that the average cuddle lasts 47 minutes and 36 seconds, with evenings being the most popular time to cosy up.
The study, reported in the journal Archives of Sexual Behavior, also found that couples were most likely to cuddle while watching a film or TV, followed by talking, having a massage, listening to music or reading but only one in six said sex was likely to follow.
For those who chat while cuddling, the most common topic is what they have done that day.
Researcher Dr Sari van Anders said: "Men and women reported feeling nurtured, protective and relaxed after cuddling and rarely mentioned sex when questioned about what they did or felt during cuddling, but talked about love, intimacy, closeness and comfort."
- DAILY MAIL