In the US, I have been taking prednisone at night...trying for 2 AM as suggested, but finding insomnia of sorts. Recently taken at 1 AM, but even this which works fine, causes me to awake around 11:30 PM and I try to make it to 2 AM, but struggle and end up taking my 20 mg between 12-1 AM....
I know sounds confusing.... I go to bed around 10 PM, awake by 11:30 Pm, many times I don't sleep at all ...wide awake for awhile!
Then I get up and try to stay awake til 2, but get so drowsy I don't usually make it.
I used to go to bed around 10 PM, get up around 5-6 AM take pred with breakfast, then nap an hour later. Now my sleep schedule is all messed up.