Why 'sleep divorce' is surging as Australian summers get hotter
Hot summer nights are driving Australian couples apart—literally. A new study reveals that nearly half of partners now sleep in separate beds at least once a week to escape the heat. The trend, dubbed 'sleep divorce' by sleep expert Olivia Arezzolo, is also affecting intimacy and mood in relationships.
Three in five couples admit they struggle to sleep during summer, with many blaming restless nights on high temperatures. Over a third point to their partner's habits—snoring, tossing, and turning—as a source of tension. The result? Couples now spend an average of 92 nights apart each year, either to stay cool or to avoid arguments over air conditioning settings.
The heat's impact goes beyond sleep. Almost 60 per cent of couples skip bedtime intimacy in hot weather, missing out on the benefits of shared sleep, like the release of oxytocin—the 'love hormone' that reduces stress. Poor rest is also linked to irritability, lower patience, and weaker emotional bonds. Regional differences stand out too. South Australia reports the highest rates of 'sleep divorce', while New South Wales couples fare slightly better, averaging 85 nights apart annually.
As temperatures rise, more couples are choosing separate beds to cope. The shift affects not just sleep quality but also emotional closeness and daily interactions. With summer heat set to continue, the trend may become even more common in Australian households.
