This article discusses at length the prospect of wearing a bra while sleeping and the possible effects of it.
Should You Wear a Bra While Sleeping?
Is It Okay to Wear a Bra While Sleeping? - Skinnedcartree
What Happens When You Wear a Sports Bra All Day?
Is It Better to Wear a Bra or Not?
Is It Bad To Wear Your Bra to Bed While You Sleep?
How Often Should You Wash Your Bra?
Should You Wear A Bra While Sleeping?
Is It Bad To Wear A Bra To Bed?
Is It Bad to Sleep in a Bra? Here's What OBGYNs Think
Braless: Pros And Cons Of Not Wearing A Bra
Is Your Bra Cup Size Too Big but the Band Fits? Here's What To Do - Importance Of Sister Sizing
Maternity bras: what you need to know
6 Important Reasons Why You Shouldn't Wear a Bra While Sleeping! - David Avocado Wolfe