Excellent. I sometimes get a decent sleep, even up to seven full hours, using nothing, but those follow a pattern I am reluctant to follow due to my preferred lifestyle (staying up late with the computer or with my telescopes/binoculars looking at the faint 'n fuzzies up there). The pattern is fairly robust...if....if I bother to enable it. It's simple: go to bed about an hour earlier. It works surprisingly well. It's as if my body's waking time is hard and fast, set in concrete, and if I got to bed later, it will rob me of sleep. I can stay up until 0200 if I want...it isn't difficult at all. But, I'll still awaken between 0630 and 0700 virtually without fail. If I use melatonin, sparingly, twice a week, I can buy an additional hour about 2 times out of three. I am not sure, because I won't test it, but if I were to take melatonin several nights in succession I think I would eventually run out of efficacy. It wouldn't work, maybe not for weeks later.
I'm happy you can have this little positivity and promise. I hope it works continuously, but you may want to resort to melatonin only two/three times each week. Or, experiment and let us know how it works if you feel you want to take it every night. Please.