Xiaoyinggan may refer to Xiaoyinggan Pu'er Tea. Whether drinking it can cause insomnia depends on the amount consumed. If only occasionally consumed in small quantities, it generally will not lead to insomnia. However, if consumed in large quantities over a long period, it may cause insomnia.

1. No Insomnia: Xiaoyinggan Pu'er tea is made using the tea's absorbency properties. Through contact with the green tangerine Peel and under the effect of heat, the oil glands in the peel rupture. Through water exchange, the tea absorbs the aromatic substances released from the oil glands of the peel, thus creating Xiaoyinggan Pu'er tea with a unique aroma and taste. Xiaoyinggan Pu'er tea also contains abundant water, amino acids, water-soluble vitamins, etc. Drinking some Xiaoyinggan Pu'er tea in moderation can help promote the secretion of digestive juices and relieve constipation. Furthermore, since Xiaoyinggan Pu'er tea is commonly consumed during summer, it has the benefits of quenching thirst and relieving heat. Moderate consumption can help supplement some of the nutrients needed by the body and generally does not cause insomnia;

2. Insomnia: Xiaoyinggan Pu'er tea contains components such as polyphenols, Caffeine, and theobromine. If consumed in large quantities over a long period, these substances can stimulate the nervous system, potentially causing excitement. Drinking too much before bed can result in mental excitement and difficulty falling asleep, leading to insomnia.

In daily life, one should avoid drinking strong tea, Coffee, and other beverages that might cause insomnia. If insomnia persists for a long time without relief, it is recommended to seek guidance from a doctor and use medications such as zopiclone tablets for treatment, to prevent long-term insomnia from affecting health.

Xiaoyinggan usually refers to Xiaoyinggan Pu'er tea. Drinking it in the evening may affect sleep. Therefore, it is not recommended to drink Xiaoyinggan Pu'er tea before bedtime to avoid difficulties falling asleep, waking up easily, and having frequent dreams, which can lower the quality of sleep.