Try eating something sweet like fruit or a mars bar and /or a small cup of very strong coffee or a caffeine drink (red bull etc)
My rule of thumb is; empty stomach eat; full stomach drink.
if this doesnt work then it could be due to one of the following
Lack of sleep / exhaustion
A problem with the gut
you have an illness
Or it could be just one of those things eg a duff pill
I find it better to be flexible with my pill taking ie the times I take them are not cast n stone if I am wearing off sooner I take a pill earlier; If im doing well I take it later.
Medication for night time is not well catered for with pd but in my view can be essential for better sleep.
Stalevo before bed may have you buzzing. Ive found that a controlled release Half Sinemet (not a sinemet cut in half) is good as it allows the natural movement that occurs during sleep.