Move Two Twin-Size Mattresses to Storage Unit

I need help moving two twin-size mattresses (no box springs) from my house to a storage unit about 15 minutes away. The mattresses are currently stacked and covered with some blankets and dresser drawers, but I will have them cleared off and ready to go by the time you arrive. There are no stairs involved, making this a quick and simple move. I am hoping to keep the cost under $50 and I am flexible on timing!