Lipton Rooibos Chai Tea Herbal Tea can help people with poor sleep quality and trouble sleeping comfortably, especially those who consume rooibos tea under the supervision of a doctor, to maintain their sleep patterns. Rooibos tea, which does not contain caffeine, usually helps you have a pleasant sleep if consumed before sleep. It is recommended to drink rooibos tea on a full stomach so that it does not disrupt the stomach acid balance.