Research conducted for a deodorants firm also found 64% of men confessed to regularly using their smartphones and tablets whilst on the toilet - while 26% planned a to-do list whilst being intimate with their partner.
Asked to divide their "ideal day" into the amount of time devoted to different activities, those surveyed said they would spend four hours and 19 minutes having sex, and three hours and 36 minutes working.
Three hours and 22 minutes would be reserved for seeing friends and family - the same time spent sleeping.
Eating and drinking would take two hours and 38 minutes, while grooming would take 29 minutes.
The study found 51% of men under 34 worry they are missing out on life experiences if they are not filling all of their time, with a quarter of all men questioned saying they try to find new ways to fit more and more into their busy lives.
When it comes to making sacrifices, 70% of men said they would be willing to cut back on the number of friends they have if it gave them more time during the day.
This new trend links with the rise of compressed technology, products and activities - with 38% believing compressed workouts are just as effective as longer gym sessions, 20% using their commute time to learn a new language or skill on their tablets, and 64% believing that such advancements in technology allow them to fit more and more into their day.
Paul O'Connor, brand manager for Unilever Compressed deodorants, said: "The demands of modern society mean that young men are under pressure to fit more and more into their lives and are looking for advances in products and technology to allow them to do this."