Just like djembe heads, not all djembe tuning rope is created equal. Low quality rope on a djembe can truly make an otherwise excellent drum sound sub par. When selecting a rope-tuned djembe, make sure that the rope used is internally braided and non-stretch. This allows the tuning to stay in place.
If multivitamins make you feel exhausted, just stop taking them. But I think you were just drowsy an hour after taking it, which is an effect of some multi vitamins but my mom is taking One a day for women, it boosts her energy, she doesn't get tired that easily. Maybe you just have to try another multi vitamins,
A study published in Sleep Medicine in December 2007 found that there was an association between multivitamin use and poor sleep, but this doesn't prove that the vitamins caused the sleep issues. If you feel taking vitamins at night interferes with your sleep, it may be better for you to take them in the morning.