Everyone wakes up with breath that is not fresh in the morning. This is because bacteria in the mouth keep multiplying at night and there is no continuous flow of saliva to wash it away as is the case when you are awake and active. This can easily be sorted out when we brush and floss our teeth. Eating specific foods such as onions, garlic and heavily spiced foods can also leave one with bad breath.
If the problem goes beyond this for you and bad breath persists throughout the day, then it is necessary to take measures to get rid of bad breath that go beyond brushing and flossing teeth.