So again that night they got their father drunk with wine, and the younger daughter went in and slept with him; he was not aware when she lay down or when she got up.
KJV
And they made their father drink wine that night also: and the younger arose, and lay with him; and he perceived not when she lay down, nor when she arose.
ASV
And they made their father drink wine that night also; and the younger arose, and lay with him; and he knew not when she lay down, nor when she arose.