...sorry, that musta been a one off article, pre hit o2 breathing is not recognized in clusterville as a successful practice ('81 on my case). O2 is an abortive (along with injectable triptans, THE most effective of the traditional aborts. DMT and, for some, ketamine the newer and less studied but reportedly effective). O2 inhalation effects are transitory in nature..... the effects do not accumulate. it is not a preventive. no harm in trying, if for no other reason than to prove to yourself what effect it does (or sadly, doesn't have). i've always figured there is only one way to find out for yourself for any method discussed here...try it...in this case ya got nothing to lose but a little gas.....
...if the melatonin does not work (and you should experiment with dosage) diphenhydramine (Benadryl in USA) is worth a try...was my go to for allergy flare ups (which i suppose might have been cause for 1 hr wake ups, (discussed below)...but i didn't realize at the time)...Quercitin is another option others are more familiar with so i defer...
...for these nightly wake ups, which were only an occasional odd cycle for me when ECH....i sorta quote myself from previous, mostly applies
"... staying on for a few mins after the hit aborted is frequently helpful. Also used to get hit hourly at night (in high cycle)...for whatever reason the O2 worked better than the usual 15 min (only 3- 5+)...but back again in an hour. What I did was: learned to wake up as soon as hit started (and no idea how I did that)...with my rig all set to go....just had to slap on mask and open valve. Left lights off, only swung knees off bed and stayed sitting, eyes closed, none of the usual movement, anger, angst, swearing...NO thoughts other than breathe-breathe-breathe-breathe (almost like a mantra). Never really woke up and could get back to sleep almost immediately. Usually got 5 or 6 hrs of sleep a night... which I was eternally grateful for because the alternative was NO sleep. Turned out my ATTITUDE about what was happening was just as important as the tools I was using...literally changed my life."