More couples are sleeping in separate beds — and waking up happier 8 hrs ago The idea of "separate bedrooms" — or at least separate beds — may carry a big social stigma, but it turns out it's way more common than you might think. A recent survey has found that as many as 30 percent to 40 percent of couples sleep in separate beds — and may sleep more deeply and wake up happier than couples who share a bed. "People will say they sleep better [together], but when we actually monitor their brains we see that their brain is not getting into deeper stages of sleep because they’re continuously being woken up by movement or sound," says Colleen Carney, a sleep researcher at Ryerson University in Toronto. "It creates a lot of problems." If your partner's a snorer or a spontaneous jerker of legs, you probably know what she's talking about. [Source] WHY? .