I just can't listen to audiobooks myself. My brain seems to shut off or wander and I notice that I haven't been listening to the thing for the past twenty minut

I just can't listen to audiobooks myself. My brain seems to shut off or wander and I notice that I haven't been listening to the thing for the past twenty minutes. It's cool that it's available for people who enjoy it, but I don't get why they don't work for me. The only one I managed to stick with is Hitchhiker's Guide, but only because 1) I know the books inside and out and 2) the voice acting fits the humour so well.