I slide mine down to do the top of the mattress first, then push it back up and do the bottom. Works well.
While I have it slid down to do the top, I put the pillows on, then the flat sheet, the blanket, and then slide it up and do the bottom. Keeps from having to slide it too much.
Love the sunshine and warmer weather!
Lynne and Jerry RVM 105
2004 Winnebago Itasca Sunova / 2012 Toyota Prius / 2016 ACME EZE-Tow Dolly