The reason why dogs always sleep is because their sleep needs are very high. Dogs usually sleep between 10-14 hours because they need adequate rest to stay healthy and active. Additionally, dogs need sleep to help them learn new things and remember past experiences.
A dog's sleep needs may vary based on age, size, breed, activity level and individual differences. For example, puppies often need more sleep because they are growing and developing rapidly. Large dogs may need less sleep because their bodies are generally stronger. In order for dogs to get adequate rest, they should be provided with a comfortable sleeping environment, including a clean, comfortable bed and a quiet environment. At the same time, in order to keep dogs healthy and active, they should be provided with appropriate exercise and activities.