We use warm water to wet shave or wash our faces without even thinking about it. Yes, warm water feels better than cold, but it also allows a closer shave and gets off more of the makeup and dirt from the day. Why go cold on a baby's bottom, it just doesn't make sense. We want the cleanest clean for baby's bottom, and want it to feel good, especially during the 3am changes. EVERYBODY loves a warm wipe. It just makes sense.