Up to 8 hours of portable, wearable heat therapy — whenever and wherever period pain strikes. No cords. No microwave. No staying home. Nyssa's Uterine Air-Activated Heat Patches deliver targeted, long-lasting relief from period cramps, endometriosis pain, and postpartum uterine discomfort in a sleek, wearable format that goes wherever your day takes you. Each pack includes five uniquely contoured heat patches that activate the moment they hit the air — conforming to the lower abdomen for focused uterine relief that lasts up to 8 hours straight. Think of them as a traveling heating pad that fits discreetly under your clothes, so no one knows it's there. Two ways to wear them, your way: Slip inside the pocket of any Nyssa VieWear Period Comfort or FourthWear Postpartum Recovery underwear or leggings for hands-free, no-adhesive comfort Stick directly to any undergarment with the adhesive backing for a secure, customized fit Whether you're at the office, on the go, or just trying to get through the day, these patches make it possible to manage period and endometriosis pain on your terms — without slowing down. ✔ FSA/HSA eligible ✔ Professionally referred ✔ Period cramps · Endometriosis pain · Postpartum uterine cramping · On-the-go relief — all in one