Jersey Knit Ultra Soft & 4-way Stretch: Made of extra soft stretchy jersey knit fabric. GRSSDER bassinet sheet offers a breathable, sweat-absorbent tee shirt like feel for exceptional comfort, providing your little ones a safe and comfy sleeping environment. Universal Fit – Measuring 32" x 16" x 5". Our bassinet sheets fit almost all standard oval, round, rectangle, hourglass shaped bassinet mattress. Each bassinet mattress pad cover comes with an elastic band encased at the bottom for safety. Apple It Within Seconds: Thanks to the elastic bottom, those soft and breathable bassinet mattress sheets can be applied within seconds and guarantees to stay in place no matter what. Clean It Without Hassle: This fitted bassinet sheet set topper can be cleaned easily and effortlessly, as it’s machine washable and dry clean. Top Rated Customer Service: If you have any question with our baby sheets, please contact us, we will reply within 24 hours. We offer an 30-day money-back guarantee, if the purchase has any quality defect, please be assured the purchase.