Prednisone tapering and tiredness. During the day anyway, still up late at night!!

so I am tapering off my 60 mg dose of Prednisone and am finally down to 15 mg, where I have been for about a week.  But I am so tired, especially today!  I remember feeling this way before when I have tapered in the past but I really just want to take a nap.  Of course, I am still up at night (even though I take my 10mg dose in the morning then my 5 mg dose in the evening) but in the morning it's so tough to get out of bed and then all morning I am in a fog. 

Is there anything anyone here does to kind of counteract that?  I would like to say I am going for a walk to get some energy, but definitely not today.  Sometimes that helps but on a day like today I am thinking more along the lines of a certain type of food or supplement etc that I can take?  Or do I just have to wait it out? 

What does everyone else do?

I am in the same boat... down to 15 mg from 40 and I am SO TIRED!!! It is so strange to feel that way after almost a year of not being able to sleep!! I still have a little bit of insomnia but mostly I'm just exhausted. I hope it gets better from here. I can't remember what it was like the last time I was tapering at this level.