Works great on the mattress for any juice or wine spills. Does not fit perfectly on the corners (i have a mattress pad on my bed) and will always roll up and move slightly on the bed, but it's worth the small cost to protect the overall integrity.
I received this mattress bag free to test and review. The timing was perfect as I had recently moved a king mattress into storage at the end of the semester and only had it covered with the standard blue tarp. I was happy to replace that old tarp with this storage bag. It went on and sealed nicely and I no longer worry about the integrity of the mattress when it returns to use again for the fall semester.
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