Hey, /out/. I was wondering if I could sleep in my bed with my hard tonneau cover closed without dying of asphyxiation overnight. Pic related. Not my truck, but same cover.

Basically my questions are these:

Does anyone have a similar cover, and can air pass in and out easily enough for you to be able to breathe?

If it doesn't, will I die of asphyxiation without waking up or will I at least wake up in time to get out and get some air?

Thanks.