睡茄（学名：Withania kansuensis）为茄科睡茄属下的一个种，俗名又称心叶青牛胆。

可恢复精神，使神经系统兴奋。帮助预防压力调节方面的障碍，以及因压力所导致的维生素C贺可体松耗尽。能增强身体的耐力以及促进功能。具有抗发炎、抵抗老化的功能。实验证实也具有调整和刺激免疫系统的功用。 其根为棕色块茎长条状，传统医学中可入药，治疗用途广泛。在古印度Ayurveda阿育吠陀疗法中其果实、叶子用于治疗肿瘤，腺体结核、痈疔、溃疡。

Withania somnifera, known commonly as ashwagandha, Indian ginseng, poison gooseberry, or winter cherry, is a plant in the Solanaceae or nightshade family. Several other species in the genus Withania are morphologically similar. It is used as a herb in Ayurvedic medicine.