There are several possible reasons why your dog has suddenly started sleeping with you instead of your parents. Dogs are social animals that thrive on companionship and human interaction, so changes in their behavior can be a reflection of their emotional state, physical health, or environmental factors.

One possible explanation is that your dog feels more comfortable and secure sleeping with you. Dogs are known to be creatures of habit and routine, and changes in their environment or daily routine can cause stress or anxiety. If your parents have recently made changes to their living arrangements, such as moving furniture or getting a new pet, your dog may feel unsettled or out of place. Alternatively, your dog may simply prefer the comfort of your bed or the sound of your breathing at night, which can provide a sense of security and reassurance.
Another possible explanation is that your dog is experiencing separation anxiety or attachment issues. Dogs that are overly attached to their owners may exhibit clingy or needy behavior, including following their owners around the house, whining or barking when left alone, and even engaging in destructive behavior when left unattended. If your dog has a strong attachment to you, he may feel anxious or distressed when you are not around, and sleeping with you at night may help him feel more secure and calm.
Additionally, it’s possible that your dog is simply seeking attention or affection from you. Dogs are social creatures that crave attention and affection from their owners, and sleeping with you at night may be a way for your dog to get more one-on-one time with you. If your dog is not getting enough attention or affection during the day, he may seek out more cuddle time at night as a way to make up for lost time.
It’s also worth noting that dogs are highly perceptive animals that are attuned to their owner’s moods and emotions. If you have been feeling particularly stressed or anxious lately, your dog may sense this and seek to comfort you by sleeping with you at night. Alternatively, if your parents have been experiencing changes in their emotional state or physical health, your dog may sense this and feel more comfortable sleeping with you as a result.
Ultimately, there is no one definitive answer to why your dog has started sleeping with you instead of your parents. Dogs are complex animals with a wide range of behaviors and motivations, and changes in their behavior can be influenced by a variety of factors. However, by observing your dog’s behavior and taking note of any changes in his environment or routine, you can begin to understand why he is acting the way he is and take steps to address any underlying issues.