Contraception, Contraceptives – Today Sponge The Today Sponge is a hormone-free birth control option that provides women with what they most often look for in a contraceptive: effectiveness, safety, ease of use, confidence, and spontaneity. Because it’s available without a prescription, and doesn’t require any additional messy spermicide creams or gels, it’s very neat and convenient. Made of a soft, disposable medical grade polyurethane foam that feels like natural vaginal tissue, the Today Sponge contains the widely used spermicide nonoxynol 9. The Today Sponge measures only 1.75 inches in diameter and .50 inches in thickness. After the Today Sponge is moistened with water and inserted into the vagina, it becomes effective immediately and protects against pregnancy for the next 24 hours without the need to re-apply messy spermicidal creams or gels — even with repeated acts of intercourse. *This product is not effective protection against AIDS, HIV, or other sexually transmitted diseases.. Contraception, Female Contraceptives