Buy hospital-grade emesis bags in bulk online from US Casehouse. Emesis bags (also known as sick bag, vomit bag, waste bag, puke bag, etc.) is a small bag given to patients to collect and contain vomit. Stock up for sick kids at school, pregnant women (morning sickness), drunk people, those experiencing motion sickness or illness. These blue emesis bags help limit exposure to vomit and reduce contamination and odors.