Absorbency: Up to 40ml = 8 tampons or 8 teaspoons. Our super/ overnight absorbency is the star in our incredibly comfortable Sleep Short. Perfect for very heavy periods or light leaks overnight and featuring our absorbent lining from the front to the back waistband. So you can sleep with zero fear of leaks...and no more messy sheets. Our Sleep Short has a mid-thigh length with a concealed waist...