Okay if someone were to have a few days of heavy drug use would it affect dreaming for a while? For example if someone were to have 6 days like this:

Day 1: heaps of pot
Day 2: MDMA
Day 3: MDMA
Day 4: LSD and pot
Day 5: MDMA
Day 6: pot

And then they didn't really remember any dreams for about a month would the the two be related?