Bentlam, also known as benny, ben weed and happy sleep, is am alien drug similar in chemical composition to earthly marijuana. It is, however, prepared to a vastly higher degree of purity than any marijuana or hashish or Earth ever was.
In effect, it is a mild euphoric that induces a state of pleasant drowsiness in its users. Other symptoms include impaired physical coordination, although cognition is unaffected. It is illegal in most jurisdictions.