There are plenty of practical reasons not to procrastinate. Leaving room for error, advancing projects faster, etc. But there’s also a major yet undervalued mental reason: the time after your obligations are done is simply more enjoyable than the time before.
Maximizing the amount of time you spend in your life without a deadline hanging over your head is a worthy goal. The earlier you accomplish each task, the more of that time you have. Even if you spend it the same as you would, it’s simply more joyous.
You might even decide to take a nap!
The Opportunity Machine 