I'm new to this site. My dad asked me to do a little research about why my 4 year old German Shepherd dog isn't sleeping through the night. She eats Eukanuba Large Adult Dry Food mixed with Pedigree Adult wet food at about 6 pm. Before my family goes to bed, we let her out to go to the bathroom. Every morning, at about 4 am, my mom or dad has to wake up and let her outside. I don't know if it's so she can go to the bathroom or if she just wants to play??