Alternative therapies are increasingly receiving more attention for treatment of everything from heart disease to chronic kidney disease (CKD) and now high blood pressure (or hypertension). The overarching principle to always keep in mind, though, is that while it might be "cool and fashionable" to treat your maladies with alternative therapies, not all such treatments are backed by hard science. Some interventions work, some don't. And yes, they could have harmful side effects as well. The best and brightest of us have fallen gullible victims to mumbo-jumbo alternative therapies for various illnesses; Steve Jobs tryst with pancreatic cancer being a case in point. Long story short, approach every treatment (including conventional medicine) as a level-headed, scientific skeptic.
Sleep. Short and poor-quality sleep are both associated with raised blood pressure (40). On the other side of the spectrum, excessively long sleep may also be harmful. One study found increased blood pressure in those who got fewer than five hours of sleep per night and in those who averaged more than nine hours of sleep per night, when compared with people who slept around seven hours (41). I suspect that it’s not the long sleep itself that is the problem, but that some underlying condition is both increasing sleep requirement and raising blood pressure.