Puppies don't have very good bladder control, so they may go to the bathroom on your bed. Use a crate or a watertight cushion until they learn how to behave.
Dogs should sleep outside the bedroom with the door closed if someone in the house has allergies or asthma. If you have allergies, you might not want to let your dog inside when it's pollen season. There might be a need for training.
Over 50% of pet owners allowing their pets to sleep in their bed report being disturbed by them, so finding a separate place for your pet to sleep may be necessary for better sleep quality.
Zoonotic diseases like Salmonella and pests like fleas and ticks can be prevented by taking your dog to the vet regularly, keeping up-to-date on vaccinations, and taking action if you think there might be a problem.
Jealous dogs can get mean and bite your partner if they feel threatened. To solve this problem, it's best to work with a dog behaviourist.
To get a good night's sleep, it's important to set limits with your pet friend. Keep noisy toys out of the bedroom so you and your dog can both get a good night's sleep.
Before letting your dog sleep in your bed, you should think about how big it is. If they get too big, it might be hard for both of you to fit. You could buy them a bigger bed or teach them to sleep somewhere else.