Napping is a good idea....but does anyone get worried about DVT???
No, especially not with such a short flight.
First you will sit and get settled. Then there's the takeoff experience, which is about 20-30 minutes, and you'll need a magazine or book or something. Then you'll be at cruising altitude and you get to focus on beverage service if your airline has that. Once that's done, you get to look forward to refills if your airline does that.
By that time it's over an hour into your flight and you're on the home stretch!
Read your book, listen to your music, etc etc, then they'll tell you to turn off electronics, so back to just reading that book.
Of course, if you take your time getting things out and putting things away (with the latter, only take your time if you've been paying attention and start to do that early...don't take your time if the FA is standing over you tapping his or her foot, of course), then that takes up more time, and gets you closer to the end of the flight, so to speak.
Then just look at the fluffy clouds (we seriously saw Grumpy in those clouds over Florida, amazing amazing clouds) and read your book, and soon enough you'll be done with the descent and you'll be taxiing.
Being aware of the wait for getting off the plane bugs me to no end, so we quite often wait until there's almost no one else getting off, before we get up. I just cannot stand standing there with people breathing down my neck, in mortal danger of someone dropping their too-heavy carryon on me (though even sitting down doesn't save you...hubby still has a scar from some lady dropping her anvil, I mean rollerbag, on him where it left a NASTY gash in his leg)... So I prefer to ignore everyone doing that and just sit in my seat an extra 5 minutes.
So just paying attention to the rhythms of the flight itself, especially with such a short one, can occupy your mind, and let you know how much more of it there is to go (aka how much you've already gotten through).