The answer to the meta is what you might eat in bed
Here's a bonus puzzle for you: this was last week's Matt Gaffney's Weekly Crossword Contest (MGWCC) puzzle, which makes it the very first crossword I've sold. (Hopefully, there will be many more!) Enjoy! Answer and explanation: https://www.xword-muggles.com/viewtopic.php?p=80205#p80205
Check out "The MOAT Mini Pack of Marching Bands" here: https://www.ephesusscroll.com/about/interest4.html. US$5 gets you 7 Marching Bands which, hard enough on their own, now contain metas too. And once again there's a mega-meta!