All ends covered.
I purchased five thermal blankets from Bass Pro stores.
Front bunk end covered by the blanket held in place by tarp clips. I got the clips from Harbor Freight - Big Top Tarp clips (P-91858). They are the same as the Progrop Tarp Clips.
Rear buck end.
My AC decided to quit on my so I was very happy that I had made thermal covers for the bunkend and slide out. They keep the PUP relative cool in the afternoon.
Slide out - this only required one blanket.