Co-careldopa

hi was wonderin if the reason i feel so sleepy is because i am taking co-caredopa 275 every 4 hrs? is there any other herbal not to feel sleepy? is there any other med thhat has been tested thats not have side effect such as being tired?
i find that, instead of fighting it, a catnap of 5 minutes satisfies the need.
Might not work for everyone.