Valmiki Ramayana Sundara Kanda Sarga 9 Shloka 61

अन्याः some women, अन्यस्याः on the other women's, वक्षसि on the chest, काचित् पुनः another again, तस्याः her, भुजम् arms अपरा तु another, अन्यस्याः on the others, अङ्कम् lap, अपरा another, तस्याः her, भुजौ on the arms.

Some women lay placing their arms on the breasts of the other while their own arms were used as pillow by another. One woman placed her head on the lap of the other and slept.