Here's how our midwife had us make our bed (starting from mattress and building on top);
Plastic mattress cover
Set of sheets
Set of "throw away" sheets
That way we could just strip and toss the first layer of sheets/plastic once the labor/birth/placenta/stitching mess was done, and still have a plastic sheet underneath in case I had a postpartum pad leak. :-)
We bought a crap-ton of chux pads - or puppy pee pads. I loved those. Sitting on them w/o bottoms was comfy and kept me from worrying about my blankets or carpet.
Bendy straws - easier than regular straws or tryin to drink from a cup. At home you're not on an IV for hydration so its important to take sips regularly especially in transition.