Better insulation in GD meaningfully contribute to keeping cool during hot weather?

[bs8118]

Hello all, I have reading here and found great advice so far.

I'm looking to order a new FW for weekly trips short term. Longer term possibly spending a month or two on the road.

We are torn between a GD and Jayco with similar floor plans. We are ordering dual AC and dual pane windows.

Concern is about heat and not as much with cold weather as we plan on heading south. I don't mind heat during the day (love it actually) but when it's time for bed I don't like it warm.

Aside from other higher quality standard features of GD how should improved insulation of GD should factor into the decision.

Will it matter when trying to keep the trailer cooler at night?

[RamGunner]

We full-time in ours, and have been in some pretty hot temps. It does make a difference, and we don't have the dual-pane windows.