I am so angry about my friend woke me up at the night telling me some not urgent stuff

Dear friend, I can understand how frustrating it can be when someone disturbs your sleep for something that doesn't seem important. It's natural to feel anger and irritation when our boundaries are not respected, especially when it affects our rest and well-being. From a Buddhist perspective, anger is considered one of the three poisons that can cloud our minds and lead to suffering. It is important to acknowledge and accept your anger without getting caught up in it, as this can lead to further negative emotions and actions. From a psychological perspective, it's helpful to recognize that anger is often a secondary emotion that covers up other underlying feelings such as hurt, disappointment, or fear. In this case, you may be feeling hurt that your friend didn't consider your need for sleep or disappointed that they didn't respect your boundaries. It's important to express these feelings in a calm and assertive way, rather than lashing out in anger or resentment. This can help to maintain healthy relationships and ensure that your needs are met. In terms of coaching advice, I would suggest having a conversation with your friend at a time when you are both calm and rested. Let them know how their actions made you feel and why it's important for you to have uninterrupted sleep. You can also set boundaries around when it's appropriate to contact you and for what reasons. It's important to communicate your needs clearly and respectfully, while also being open to hearing their perspective and finding a compromise that works for both of you.