The Koran doesn't deal much with practical matters of sex in marriage.
It is promised that the righteous men will have sex in heaven with heavenly virgins. It does amsp say that they will "wed" those virgins.
No corresponding promises are made to women.
Throughout the ancient middle east, including Israel, and the various nations that later became Islamic, women were considered to exist only for their men.
Both Islam and Judaism have largely kept that idea.
However if you compare the Koran to the Old Testament treatment of women, the Koran is much more liberated.
Worst of all is the Talmud.