Many dogs often seek contact with their owner because they are bored or want to say something.
Some dog handlers believe that in this way the animal is trying to copy other family members who do the same.
It is easy to guess that the dog is trying to show love or a desire to play.
She can rest her head on either her shoulder or another part of her body.
This has nothing to do with dominance and trying to suppress the owner - she just wants to show that the owner is safe.
It is also quite common for dogs to put their heads on your legs or laps. They want to strengthen the bond and show affection in this way.
Note that if a dog can sleep with its head in an elevated position, it may have breathing problems.
Contact your veterinarian if you have any suspicions.