sleep vs. awake

the line between sleep dreams and awake reality is blurring more and more for me these days. when i sleep i am a vivid dreamer. trying to differentiate between what is dreamt and what is lived seems like an obfuscating task. and then i wonder, does it matter? if i recall a memory as though it were a lived reality but was actually a dreamt fantasy, who is gonna be my judge of truthiness?