I used to have a “regular” helmet (which you can see on some old pictures), but could not lean my head on the headrest.
Thus, I just recently (December 2012) got a Nutcase helmet, looking for this round shape in the rear. These are quite nice and fun, and also offer a better side protection – which would be I guess needed on my case (?!). At least, I feel more safe. Good, isn’t it ?
Thinking of the dark winter nights and to improve also visibility during daytime, I bought a “Lemon Lime” – the color which was closer to the one used now by emergency vehicules in Switzerland and around. It looks just great.