Truck bed insulation

[tractor_to_trail]

I have a ram 2500 and I'm wanting to lightly insulate the sides of the truck bed. I use a stahl mat on the floor so I think that's good.
The truck bed I have has a lot of access holes to the outer panels which is good but also let in a lot of air. I was thinking of tappin over them and using a peel and stick like a sound deadening you see used in vans.

My question is has anyone done this and what brand is recommended? I'm just looking for a light insulation and mainly to close off the access holes.

https://a.co/d/0ixBOubZ

This is what I was thinking of using. My truck bed does have a bed liner spray in so would it even stick?

 

[Kingsize24]

I used body color vinyl wrap (gloss white) on my bed when I had my camper. It did a great job of sealing out the dirt, bugs, and any air leaks. I slept in it many nights that way. I had also added the bed tailgate seals as well. It all but sealed up my bed completely. Never was any issues after that point.

 

[csj]

I just did this and we used butyl rubber (because I had some) to seal the holes and I can remove it later if I need. After that I used Bubble wrap and sorta-of carefully covered the inside of the bed so it followed the contours then installed a new bed mat. This will get covered by the built in cabinetry soon.

This is the start of redoing the inside of my 2015 ram 2500/ project M after a rough winter trip to Montana, my battery went out on low temp and so we were on generator for the rest of the trip. We're also finally installing a diesel heater, larger heated battery and all around upgrading the power system.2

 

[tractor_to_trail]

I just did this and we used butyl rubber (because I had some) to seal the holes and I can remove it later if I need. After that I used Bubble wrap and sorta-of carefully covered the inside of the bed so it followed the contours then installed a new bed mat. This will get covered by the built in cabinetry soon.

This is the start of redoing the inside of my 2015 ram 2500/ project M after a rough winter trip to Montana, my battery went out on low temp and so we were on generator for the rest of the trip. We're also finally installing a diesel heater, larger heated battery and all around upgrading the power system.2

Looks great. What did you stick the bubble wrap on with?

 

[csj]

I didn't tape it to the bed, I just cut pieces to fit and taped them together then the bed mat holes it down and at the top its tucked under the bedrail.
This isn't a perfect job but with the a number of holes in the bed it's a pretty good improvement.

here's a better picture

 

[tractor_to_trail]

I didn't tape it to the bed, I just cut pieces to fit and taped them together then the bed mat holes it down and at the top its tucked under the bedrail.
This isn't a perfect job but with the a number of holes in the bed it's a pretty good improvement.

here's a better picture

True about the holes. Looks good.