Our cat always ends up in our bed every night and it drives me crazy. I'm pretty sure she knows this and purposely tries to irritate me more by laying as close to my face as possible. Most people don't mind sleeping with their pets and according to one Mayo doctor that's OK. She says most people sleep better when they cuddle with their pets.

Dr Lois Krahn tells the Daily Mail: ''We found that many people find comfort and a sense of security from sleeping with their pets. Today, many pet owners are away from their pets for much of the day, so they want to maximize their time with them when they are home. Having them in the bedroom at night is an easy way to do that. Most people assume having pets in the bedroom is a disruption. We found that many people actually find comfort and a sense of security from sleeping with their pets.''