إن جامع الرجل امرأته وهي نائمة وشعرت به بعد إيلاجه فالأدب في ذلك ألا تتكلم ولا تشعره وأن تستديم حالتها من النوم وترخي ساقيها وفخذيها حتى لا يجد منها مدافعة عن أي جهة أراد تحريكها إليها
نزهة الاصحاب في معاشرة الأحباب لإبن يحيى المغربي في أدب المجامعة
If a man has sex with his woman while she is sleeping, and she feels him after he has penetrated, then the proper conduct in this case is that she not say anything and not make him aware of it, and that she continue in her sleeping position and relax her lower legs and her thighs so that he does not encounter resistance in any position towards which he would like to move her.
Ibn Yahya, Nuzhat Al-ashab fi Mu’asharat Al-ahbab [Stroll of the Companions in the Intimacy of Affections], Section: regarding conduct in sexual intercourse