My uncle also had Parkinson's and found a true 90 minute sleep nap was very very helpful.
Now that I have Parkinson's this awkward period of the day made me do a tremendous amount of research. I discovered a tremendously understandable explanation.
The article was by a Neurological Parkinson's Psychiatrist comparing the brain strain of PD to the strain on an overworked computer. If you wake up and start doing research or playing with the computer it will overheat and have to be turned off for about an hour. As our brain also tends to overheat it also needs to be turned off with a 60-90 minute nap. As we sleep our stress level can return to almost a morning norm.
My productivity from wake up to nap is 70% but with the nap I wake with 40% for the rest of the day.. Main win for me is no longer a crash midday.

Nap time

I either sleep or get on phone where I can read whatever I find interesting, watch videos, or play games depending on how active my brain is.

My off-time happens mostly after I work out in the morning. I can't easily do much during this time, other than crashing and taking a nap, which I do. I had DBS done in 2018, which pretty much eliminated my tremors. For medication, I take carbidopa-levodopa Extended Release (generic Rytary?). This costs me $20.00 for a 3-month supply. I also take a little carbidopa-levodopa Immediate Release, which gives me a quicker boost of dopamine. I pay $5.00 for a 3-month supply of this.

I cannot tell a lie i smoke weed for my pain any input?