My 1 year old female dog is sleeping a lot and gets angry a lot on the pther dog in the home who tries to play. Is there something going with her?

Hi Priya. First of all, rule out if she is in heat or not but the reasons to sleep excessively or to get aggressive suddenly could be due to any underlying cause/illness, fear, boredom, frustration. You can get her checked thoroughly with some blood tests by booking a home consultation with a vet.