My CH are episodic, so the first round I had with them almost 4 years ago happened about every other day and at night about an hour after I fell asleep. This was before I started prednisone. The prednisone seems to, at the least, break up the headaches making them happen at different times and I do believe it helps to end the cluster cycle. This round, before I started prednisone, seemed to happen between 5 and 6pm, which was great since it was not affecting my sleep as much. i started prednisone and then eventually got the oxygen. Now, I am off of the prednisone and just doing the oxygen. I do feel like I am on the back end of this cycle as the headaches are not coming near as often as a few weeks ago. For example, the weekend before last I woke up 3 times on Friday night (1am, 3am and 5am). Went to my man cave and jumped on the oxygen. Within 5-10 mins, it was gone each time. Saturday night was two times, and Sunday was zero and a full nights sleep. Slept full night Mon-Thur of the next week. This past Friday, it was 3 times just like the previous Friday, 2 times on Saturday and zero on Sunday. Starting Sunday night I began taking two Benadryl before bed and have continued that this week and have not been woken up yet. I plan to continue that through this weekend to see if it works on the weekend as well. Trust me, getting up 3 times and aborting with oxygen still beats a headache. I surely appreciate all the feedback and other options you have provided me. My hope is that since the CH hit me at a later age, that I will age out soon. The fact that I did not get my first cycle until after 40 years old and didn't get my second until 4 years later is a win in my book after reading other folks stories. I have a good friend that dealt with them for years and he had a CH every 2 hours. I cannot even begin to imagine what that would do to a person.