The first thing many folks started using to cover the bunk ends is Reflectix®, which is a 5/16" thick, seven layer, reflective insulation which is available in rolls of various widths and lengths. Two outer layers of aluminum foil reflect 97% of radiant heat" It is unfortunate that it is not available in a width to cover the entire bed end and because of this it must be spliced to cover the end. Most users add grommets to the corners to allow it to be tied into place. A standard roll of reflectix of sufficient size for a pop-up is around $50 (with lots left over). It is available from most home improvement stores (Home Depot/Lowe's).
Other options include Mylar "space emergency blankets", which while highly reflective but are thin and susceptible to tearing and holes. Additionally the "silver" can rub off and stain the tenting on you pop up.
Some people use silver or gray tarps which are heavy duty, but are not as reflective.
Fo a while I used
Sportsmens Blankets which are very reflective on one side. Again, it is unfortunate that they are also not available in a width to cover the entire bed end. Purchase 3 or 4 to spice or overlap toc cover the ends (depending on your roof size.
A couple of years ago custom made reflective covers exactly sized to the make/model of your pop up became available. I held out for a while, continuing to use other things but then gave up and purchased them. They are made by a nice guy in texas named Bob who had already been manufacturing a bracket for the Coleman roof air conditioner called a "Popupgizmo". If you look in the rearview mirror and see the shroud for your A/C unit shaking and jumping as you tow you need one of these. Take a look at it
HERE.
Now, back to the solar bunkend covers. I must say the ones Bob makes work great. I used the sportsmens blankets first and I like Bob's better. They are an exact custom fit for your pop up and keep the bunk ends nice and cool. Just clip them on the top of the bunk ends (and the slide out in our case) before you pop all the way up. It helps keep the pop up cool.
Check them out on the
Popupgizmos web site. Please note he has a notice onthe site that he will be closed from June 23nd - June 30th. All orders received by June 20th will ship by June 22nd. Orders received after June 20th will ship when we re-open. So if you want them soon order by the 20th.
For more information check out my
Pop Up Camping Frequently Asked Questions Web Page
.