You can sleep with your pets in bed. Make sure that they are fully vaccinated. Sleeping with your pets may enhance the feeling of comfort and security within you. Pets are known to regularise emotions and add meaning to life. Therefore, it improves one's mental health manifold. Pets also improve your immunity through certain bacteria. But, where sleeping with your small pets for cuddling has benefits, it may also have some downsides. If you are prone to allergies, allowing the pets in the bedroom may cause severe allergies from their hair o your bed. In addition, if your pet is a carrier of any bacterial infection, you might be susceptible to its effects.