I want to always have fresh breath. Anything I’ve used leaves a filmy feeling in my mouth and does not improve my breath
Assuming that you have ruled out any health issues or bad teeth and gums as a cause to your bad breath. You may just have the morning breath. You can try brushing your teeth right before you go to bed and use a mouthwash that kills germs. I like Listerine but really any good mouthwash you like should be ok.