In reality, productivity is all about a fight against compensatory behaviors. A reduction in compensatory behaviors increases anxiety. People try to lower anxiety with things like biohacking or OCD-type behaviors like making lists.
The only thing that would really help here is to reduce the need for compensatory behaviors by removing whatever it is one is compensating for. This is the direction where real productivity lies.
In the meantime, a good matress and a system of to-do lists are a good band-aid.