I have a tent that attaches to the canopy (similar to this with no doggy door) and at night I keep the windows zipped up, as soon as the sun starts coming up I put the windows down and let the 3-4 fans go at full blast to get another 2-3 hours of sleep. I also use a cot which is so much better.
Try something like this. We have the walmart version and it's stupidly roomy and easy to set up. You will need a seperate 10'x10' straight leg canopy for it however. Doors are big enough your hubby shouldn't need to zip them down all the way and it'll have plenty of center hight.
This is the one. I believe I can make one of the side windows work as a pass through from the car. Fingers crossed it works out.
E-Z UP Camping Cube 6.4, Converts 10' Straight Leg Canopy into Camping Tent, Splash https://www.amazon.com/dp/B073ZSF1FS/ref=cm_sw_r_cp_api_glt_i_SMCK5MYNC9H92JT6DZ9G
E-Z UP Camping Cube 6.4, Converts 10' Straight Leg Canopy into Camping Tent, Splash https://www.amazon.com/dp/B073ZSF1FS/ref=cm_sw_r_cp_api_glt_fabc_8TA7XWTPGS3189EMA6AY
Hope this works!
Edit: the actual canopy is not included. This is just the “tent”.
My tent didn’t arrive. Had to make due. E-Z UP Camping Cube 6.4, Converts 10' Straight Leg Canopy into Camping Tent, Splash https://www.amazon.com/dp/B073ZSF1FS/ref=cm_sw_r_cp_api_glt_i_SMCK5MYNC9H92JT6DZ9G
Definitely. Bought this but it is exceptionally late on delivery. E-Z UP Camping Cube 6.4, Converts 10' Straight Leg Canopy into Camping Tent, Splash https://www.amazon.com/dp/B073ZSF1FS/ref=cm_sw_r_cp_api_glt_i_SMCK5MYNC9H92JT6DZ9G
Defiantly. Bought this but it is exceptionally late on delivery. E-Z UP Camping Cube 6.4, Converts 10' Straight Leg Canopy into Camping Tent, Splash https://www.amazon.com/dp/B073ZSF1FS/ref=cm_sw_r_cp_api_glt_i_SMCK5MYNC9H92JT6DZ9G