Sleep Improvement - for those who wake at night and then go back to sleep


Hi out there, 2 months after stopping fin I still suffer from insomnia. First 3-4 hours I get normal sleep and after that I wake up and rest of the night is a phase of being half asleep and half awake… often having the feeling of being full of adrenaline.
My dopamine, serotonin and noradrenalin was tested low. Melatonin was normal.
Has anybody tested Melachron 3mg? It’s 1/3 fast releasing and 2/3 slow releasing melatonin.
Thanks for any advice