I nailed a 1/2 x 1 trim board to the top of the storage wall, between the gas struts, that is under the bed and this now supports the bed, then added strips of 2" foam to the underside of the bed frame at the same location. I used 3M spray glue. This fills the gap between the bed and the storage area when the bed is down. I also cut foam to fit around the gas struts to close off as much as possible.
My better half didn't like the idea that bugs could fly in under the bed when the front storage doors are open.
The next step will be to line the whole bed side of the compartment with foam and cover it with thin ply to help with heating and cooling, maybe the underside of the bed in the compartment too.
A Smart phone is one that is NOT in your hand while driving!