Dog owners have a clear idea about how much clingy a dog can be. Either you are new to this or you are not paying proper attention to your pet. No matter what the reason is, you can make a dog shelter, try teaching them to sleep in there. Once they get used to it, you can sleep peacefully. Besides this, if you want someone, who can write an ESA letter online . You may consult your physician, therapist, or any health care professional. But before that, check to see if you are eligible for it.