Health
Co-sleeping with pet dogs — but not cats — linked to poorer sleep in study
Sleeping with your dog in the same room could be negatively affecting your sleep quality, according to my team's recently published research in Scientific Reports.
We recruited a nationally representative sample of more than 1,500 American adults who completed questionnaires assessing their sleep habits. Overall, about half of the participants reported co-sleeping with pets — defined in our study as sleeping in the same room with your pet for at least part of the night.
Next, our research team compared the sleep habits of people who did and didn't co-sleep with Pets. Our analyses revealed that participants who co-slept with Pets had poorer sleep quality and more insomnia symptoms than those who did not. These findings persisted even after accounting for demographic differences between these groups. When considering Pet type, we found evidence for a negative effect on sleep when co-sleeping with dogs but no evidence for a negative effect on sleep when co-sleeping with cats.
Surprisingly, 93% of people in our study who co-slept with their Pets believed that their Pets had either a positive or neutral overall effect on their sleep. Although more research is needed, these findings could suggest that most people are unaware of the potential negative effects their Pets may have on their sleep.
Why it matters
Most pet owners report that their pets have a generally positive effect on their mental health. Pets can improve their owners' health in numerous ways during the day, such as by encouraging physical activity, promoting a daily routine and providing love and companionship.
However, our study fills an important knowledge gap by indicating that co-sleeping with pets can affect sleep quality. Good sleep is a pillar of health and wellness. Even though pets may have an overall positive effect on mental health, it is possible that some of this benefit may be undermined if they are also causing you to lose sleep at night.
Although some people report that co-sleeping with their pets can provide them with a sense of comfort or intimacy, it is important for people sharing a bedroom with their pets to be aware of their potential to serve as a source of nighttime noise, heat or movement that can disrupt your ability to fall or stay asleep.
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