[Tichy]

In the article it says "they played a VIOLENT video game" (emphasis mine), yet the title only says "video games". For all we know, there might be sleep inducing video games.

Apart from that I wonder how much of it is just "sitting in front of a screen with artificial light" - isn't there an issue with certain wavelengths of artificial light affecting Melatonin production, which might also affect sleep?

All in all, the study does not sound very trustworthy to me. Because of the subject, I have no doubt it will picked up by all the newspapers and TV talk shows, though.

[arrrg]

The abstract says “novel, violent, fast-paced video game”. I assume the actual paper would also name the game, but I cannot access it.

[phames]

Yes blue light inhibits melatonin release, although to my knowledge there is still very little reliable research on in-situ, naturalistic use of devices on sleep.

Agreed that this is a small sample; however the use of both subjective and objective measures is a step forward.