The next morning when Shen Lie's group was ready to depart back to their main camp, everyone saw that Yu Lingyue was looking rosy.
The reason why she was looking so rosy was because Shen Lie had filled her with his yang essence for the entire night and she was also enjoying all sorts of sexual escapades with him.
Yu Lingyue actually did not sleep the entire night as she did not want to waste the time with Shen Lie but she was not tired at all.
High level cultivators actually did not need as much sleep as the lower level cultivators and they could go for days, weeks and even months without sleep.
Once they had reached the Yuan Yin cultivation realm, they would be considered a golden celestial and they would have attained a golden body that rendered them immunity to most poisons and they did not need to eat or drink anymore.