A study conducted by researchers at Canisius College determined that women sleep better with dogs by their side instead of another human. In a survey of 962 U.S. women, 55 percent sleep with at least one dog and 31 percent sleep with at least one cat by their side. Additionally, 57 percent shared their bed with a human partner.
The study discovered that dogs disturb the women less than their human counterpart and provided stronger feelings of comfort and security. Additionally, Canisius College found that dog owners go to bed earlier and keep a stricter sleep schedule.
On the other side, cats were reported to be equally disruptive as human partners and were associated with weaker feelings of comfort and security.