Hi Mike,
Tapering off prednisone is challenging. You are certainly not alone. In fact, I moved your post to this existing discussion:
- Prednisone tapering is challenging. What does remission feel like? https://connect.mayoclinic.org/discussion/prednisone-tapering-and-remission/

I did this so you can connect with others, like @milld835 @tsc @anniekirby @minijohn @kmeikle1 and more, and read their experiences, including experiences with splitting dose over the course of the day.

You may also be interested in these related discussions:
- Prednisone tapering is hard: Do complementary therapies help?: https://connect.mayoclinic.org/discussion/prednisone-tapering/
- Tapering off of Prednisone: https://connect.mayoclinic.org/discussion/prednisone/

You're asking a good question about taking a split dose late in the day and your concern about it affecting your sleep. How early in the morning do you take your medication?