Some messages take precedence over others, so having the same notification tone for all your threads isn't always the best solution. Fortunately, Samsung Messages has a simple option you can tweak to set custom sounds for specific chats to help you stay on top of priority conversations and reply much faster.
Ideas can hit you out nowhere, but texting loved ones in the wee hours of the morning or during work hours isn't always ideal, especially if they've muted their notifications. So you'll want to send a message at a better time to ensure it gets the attention it deserves. Samsung Messages lets you do just that by scheduling messages to send at a later date.