Im impressed by your dedication kromagno, that sleep schedule sounds pretty difficult. Those sleeping times are optimal for dream activity, so I can see the utility. You already have a sleep schedule conducive to dreams, and something else very helpful for any kind of dream activity is a pre-sleep exercise. Using self suggestion, by telling yourself that you will remember your dreams, and that you will have lucid dreams is a good way to improve recall and increase lucidity. Incubating certain dream ideas, themes, concepts, schemas, constructs, etc. can also improve your dream experience. Another way to look at these activities is planting an intention before sleep that your memory will carry out in your dreams. Metaphorically speaking its like a boomerang, because it always comes back around. Anyways, maybe that can be useful.

Good luck!