I second that...Clonidine and/or the amino acid L-Arginine on an empty stomach or at the least no protein during the same time.
Clonidine can help with sleep as it stimulates Orexin synthesis in the hypothalamus , Orexin antagonists promote wakefulness ie) Modafanil and various analogues( eugeroics) ~ Adrafanil, Armodafanil etc. L-arginine stimulates NOS ( Nitric Oxide Synthase) which dilates arteries and lowers blood pressure .It can increase HGH levels and decrease arterial stiffness