I feel like I used to have a satisfactory layout for years but haven’t since found a consistently comfortable arrangement. I like to have a fairly thick pillow or two under my head to accommodate my bad shoulder, a pillow between my thighs to avoid chafed skin, and a pillow for hugging - also mostly for my shoulder.
The head ones tend to get distorted really quickly and it’s really difficult to find a good hugging pillow.
A good foam pillow under my head, a bit of my blanket between my knees. Sometimes I think about getting one of those knee pillows but so far I haven’t bothered.
I won’t go back to a down-filled pillow. Those will inevitably stop supporting my head during the night.