Personally, I don't think the benefits are necessarily worth it for everyone. It benefits me a lot, but I don't go out of my way to recommend it to (say) my wife as she has things quite figured out without it.
I'd say meditation has a few distinct key benefits, and it's reasonable to decide none of these are worth it for you at this point in your life (or ever):
(1) It helps you tame your mind when it goes down an unproductive path. This alleviates the ailments you mentioned (sleep disorders, depression, anxiety, etc), and provides an overall sense of peace and joy. You may not suffer much from these.
(2) It helps provides a comfortable detachment from your emotions and attachments. This helps with restraining your desires, improving your relationships, and making calmer and more rational decisions even when emotions are high. In other words, this helps narrow the distance between who your values want you to be (e.g. humble, thoughtful, calm under pressure, selfless) and how you act day-to-day. You may be doing just fine with these.
(3) It can satisfy the need for fulfillment and meaning in a more stable way than anything else. Many people have something that guides them and provides long-term or lifelong fulfillment (a long-term goal, religious beliefs, etc), and IME meditation can provide the most stable source of satisfying this need (this is dark, but even if providing for your family provides this need for you, your family may die or you may become alienated from them). It does this by essentially uprooting that need on a fundamental level (at least, that's the Buddhist tradition's explanation of why it has that outcome). You may feel fine with the small anguish or small risk of anguish that occurs in moments of your life where your meaning and fulfillment come into question, or you may feel relatively positive they never will (e.g. if it primarily is sourced from strong religious conviction).
(4) It helps you know yourself better. This feeds into (1) and (2), but on a meta level, it also helps you self-evaluate the extent to which (1), (2), and (3) are an issue. It also adds an element of fun and curiosity to meditation once you start to experience it. You may not care about this.