I will be uploading a rain video for sleep in youtube, shall I check or uncheck the following square:

Place ads during video (mid-roll)In videos longer than 8 minutes, mid-rolls will be placed at natural breakpoints. You can review and adjust placement after the video has finished processing. Learn more

Whether to check or uncheck the square to place ads during the video depends on your preference and goals for your YouTube channel. If you want to monetize your content and earn ad revenue from the video, you should check the square to place ads during the video. However, if you want to provide an uninterrupted and ad-free experience for your viewers, you should uncheck the square. Ultimately, the decision is yours to make.