Renovation - Spray foam or Batt Insulation! Advice please!

My house is spray foam on all exterior walls attic ceiling and floors. My bedroom is the hottest room in the house. The ceiling of my bedroom is not insulated because the attic above it has the foam. Would it help to put down insulation between the studs of my bedroom ceiling? I have pretty easy access to that space.

Shouldn't make any difference and could cause problems.

Buy one of these and use it to determine if your ceiling is hotter than the rest. If it is, then it's likely because the ducts are not balanced because all the attic should be the same temp if foam is done right.

Amazon product ASIN B00837ZGRY