In what year was the album “失眠的夜” released by 宋孟君?

In what year was the album “失眠的夜” released by 宋孟君?: The album “失眠的夜” was released in 2021 by 宋孟君, featuring 4 tracks.
What is the most successful song from the album “失眠的夜” by 宋孟君?: “失眠的夜” is the biggest hit from the album “失眠的夜” by 宋孟君.

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