productivelazy 

Doing something productive (working, studying etc.) in a very slow pace, from a very comfortable place, preferably in bed, whilst wearing your comfortable clothing. To any observer it seems lazy, but there is actual productivity going on.

"I've spend my entire day productivelazy!"

productivelazy by DefiningNewWordsOnTheInternet June 12, 2016

Productively Relaxing

The state in which a person is calm and comfortable while being effective and efficient.

Heather is "productively relaxing" while laying down in her bed conducting research for her paper

Jon is "productively relaxing" while laying down on his couch checking his emails

Productively Relaxing by social entrepreneur April 20, 2013

Productively Lazy 

When you’re wanting or thinking about being lazy, you’re technically productively lazy. Since being productive is setting your mind on doing something, then doing it, makes wanting to be lazy productive.

Andrew; You’re lazy.

George; No, I’m productively lazy.

Productively Lazy by kid cuisine February 8, 2019