Can Labradors sleep outside? If a Labrador has a warm, secure kennel where he is protected from poor weather, cold temperatures, and other animals, he can sleep outside. However, leaving a dog to sleep outside can leave them vulnerable to parasites like fleas and ticks. And leaving them alone outside for too long can cause issues like separation anxiety and stress. Most Labradors will be happier if they can sleep close to you inside your nice warm home. Can Labradors Live Outside?