There's a whole heap of tips here, especially re: turning over in bed:
https://www.bellybelly.com.au/forums...-137611-3.html

I'd add to the list I posted - get your GP to sign off a form applying for disability parking. It makes a huge difference in reducing steps/effort.
If you can access online shopping, use that. Makes a huge difference.
If you can access a piece of cheap silk from spotlight, put that under you when you sleep. Otherwise, use a bin liner. Use one to swivel in and out of the car too.