This is just a sign of dominance and he/she is probably showing you that her pet bed is hers and she is dominant over it not you. When she does this just distract her. grab a treat or something. this will stop after a while and don't worry this is a normal stage dogs go through.
Another reason why your dog humps his bed is that he sees the act as playful behavior. Dog owners who find humping irritating often scold the animals for such. If you don't make your dog realize that humping is bad behavior, he may see it as part of a normal play or day, the same way he sees barking and jumping.
Humping is a common behavior in dogs and is seen in both males and females, whether they are fixed or not. While it is most often attributed to “dominance,” nothing could be further from the truth.
If your dog only humps when there's someone around then it might be that they're lonely and need attention from those around them. They also do it just for fun sometimes, but no matter the reason, it can be difficult if your dog is humping you too much. Maybe they see your lower body as a giant play toy?
Some dogs also hump their beds as a form of play. They don't think of it as we do and don't feel shame or embarrassment. It's not like that to them at all. When some dogs hump their beds, they're just playing and having fun.
When they're in their bed, alone and quiet, the symptoms will manifest and as a child would scratch at what ever was bothering them, a dog will react by licking because the itching is driving them nuts. Constantly licking at a wound or infection is the way dogs cure themselves.
Since most dogs consider their pet parents as pack members or part of their family it is natural for them to want to sleep next to you. Another common reason dogs enjoy getting into bed with their owners is for the cuddles and petting.
Object sucking or holding seems to provide the comfort needed by such dogs at a time when they are tired, perhaps in a similar way to puppies who feed first before sleeping.
Simple urinary incontinence could be the reason your dog pees on the bed. As with humans, incontinence is more common with age, but younger dogs can be incontinent for a variety of reasons. UTIs, urinary stones, prostate problems, spinal injury, hormonal imbalances, and certain medications can all lead to incontinence.
Boredom drives many dogs to chew their beds; dogs become frustrated and restless when they don't have a positive outlet for pent-up energy. Exercise your dog. If you're crating him, it's crucial he gets enough exercise and is not isolated for too long.
Your dog feels the need to assert his dominance or ease his anxiety by laying out his boundaries. He does this by depositing small amounts of urine on anything he feels belongs to him—the furniture, the walls, your socks, etc. Urine-marking is most often associated with male dogs, but females may do it, too.
Boredom and Anxiety Without regular walks, toys to play with, and other enrichment activities, dogs may become destructive out of boredom, or to get a reaction from owners. Similarly, if your dog experiences separation anxiety, bed chewing can manifest as an anxiety behavior.
Some dogs attack their beds because they are bored. In the absence of other more fulfilling things to do, dogs will create their own fun. Unfortunately, we usually don't like the things they get up to when left to their own devices! It is well known that dogs like to chew.