I am a firm believer in do what works for you...just experiment!
That has been our Neuros advice since the big change from DAs to Sinemet.
My husband sets the alarm for 30 mins before he needs to get up and takes a Dispersible Madopar, then his Sinemet about 15 mins later with a big glass of water each time.
He can then move well and get up after about 15 mins of sitting up to raise his blood pressure.
Then it's every 2 hours prompted by his timer for the rest of the day.
Most days the times are the same but when on holiday or staying with relatives we make a few changes.
Can you try a few ways and see what works well for you?