A new scientific study has raised fresh concerns about a common habit among pet owners sharing their bed with dogs or cats suggesting it may be linked to poorer sleep quality and symptoms of insomnia.
Published in Scientific Reports, the research examined data from 1,591 adults in the United States to understand how pet ownership affects sleep patterns.
The findings showed that nearly 47.6% of pet owners sleep in the same bed as their pets, and even after adjusting for age and income, co-sleeping was associated with reduced sleep quality.
The study found that the negative impact on sleep was largely driven by dog owners. Researchers noted that dogs’ larger size, frequent movement during the night, and tendency to follow their owners’ routines can all contribute to disrupted sleep and nighttime awakenings.
Participants who shared their beds with dogs were also more likely to report symptoms consistent with insomnia, compared to those who did not.
Interestingly, the study found no significant decline in sleep quality among cat owners. Researchers suggest this may be due to cats being smaller, lighter, and less likely to disturb sleeping positions or align their routines with human sleep cycles.
However, earlier studies have indicated that cat owners may occasionally report other sleep-related disturbances, including leg movements during rest.
Despite the findings, experts stressed that pets continue to provide important psychological benefits. Studies from the National Institutes of Health (NIH) show that interacting with pets can help reduce stress levels, lower blood pressure, and increase oxytocin the hormone linked to relaxation and emotional bonding.
These benefits are particularly significant for individuals dealing with stress, loneliness, or depression.
Medical experts also caution that sleeping close to pets may increase exposure to allergens. According to the American Academy of Allergy and Asthma, nearly 30% of allergy sufferers may experience sleep disruption due to pet hair and dander.
The US Centers for Disease Control and Prevention (CDC) further notes potential risks such as infections and flea-related conditions, including cat scratch fever.
While the study highlights possible downsides of co-sleeping with pets, researchers emphasize that the decision ultimately depends on individual health conditions and personal comfort, as pet ownership continues to offer meaningful emotional and physical benefits.
