Is it permissible for a husband to lend his marital home and marital bed to his brother and his wife to spend their wedding night there?

There is no objection to the husband's family staying in the marital home if the wife agrees and is not harmed. Otherwise, it is not permissible, because it is an encroachment upon another's property (the wife's private space) and an infringement upon her right to an independent home where she is not harmed, and her right to refuse the dwelling of the husband's relatives with her.