Happy couples apparently make good bedfellows: New research says that when happy couples sleep together, they tend to have more -- and less disrupted -- REM sleep.
, and it's been linked to emotion regulation, memory consolidation and creative problem-solving, the researchers said.
For the study, 12 young, healthy couples between 18 and 29 years old volunteered to spend four nights in a sleep lab. They had been sleeping together most nights for at least three months. When they slept together, both partners spent more time in REM sleep than when they slept apart -- and their REM sleep was less disrupted. Interestingly, they also moved their limbs more often when sharing a bed, but this didn't seem to disrupt REM sleep.
Jessy Warner-Cohen is a senior psychologist at Long Island Jewish Medical Center in New Hyde Park, N.Y., who reviewed the findings.
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