That one didn't work out for me whatsoever. Epithalon could have given a slight improvement. Which sleep aspect are you looking to make better? How long you sleep? The depth of it? Keeping asleep all night? Drifting off at the start? Four IUs of HGH before bedtime made a difference for me across all those areas.
I've gone over several discussions where DSIP gets mentioned in stacks, yet there's little in the way of personal stories. Anyone using this? Did it make your sleep better? Considering giving it a shot myself but looking for honest input beforehand.