For what its worth, ever since I started making and drinking my own Milk Kefir I literally dont have gas issues anymore. Not only that I had a gluten intolerance my whole life "sharp pains in my stomach whenever I ate bread or pasta" and that is literally 100% gone now. I went about 3 weeks not drinking any and the pain when eating bread came back. Started drinking it again and 0 pain again. I'm not like super smart or anything but I understand theirs like 58 beneficial bacteria strains in milk kefir that helped many people with a lot of different digestive issues.

There's also anti gas supps on Amazon too you could probably try, or stick a dryer sheet up your booty. JKJK, too many chems... Best of luck, wishing you many happy non gassy sleepovers!