Health Benefits. While the money savings is a good perk, sleeping on natural latex is even better. There are many âhealthy side-effectsâ that go with sleeping on natural latex foam. Pure, organic latex is inherently hypoallergenic, because it is not a man-made product, or a derivative of petrochemicals.
According to the Oxford English Dictionary, the earliest appearance of the phrase dead as a doornail appears in William Langland's 14th century religious allegorical poem, Piers Plowman. The relevant line in the original poem stated, Fey withouten fait is febelore Ã¾en nouÈt, And ded as a dore-nayl..
For other uses, see deadbolt (disambiguation) . Door with two locks, one in the doorknob and a separate deadbolt. A dead bolt, deadbolt or dead lock is a locking mechanism distinct from a spring bolt lock because a deadbolt cannot be moved to the open position except by rotating the lock cylinder with the key.