For me achieving a successful nap means getting to the stage of dreaming. If I wake up from a vivid weirdness (dreams don't make sense most of the time), then i

For me achieving a successful nap means getting to the stage of dreaming. If I wake up from a vivid weirdness (dreams don't make sense most of the time), then it's certain I'll feel energetic in about half an hour. Otherwise it's some form of rest rest but I still feel tired. It's extremely annoying trying to concentrate when feeling tired.