Read in the living room.
When I was a child my parents passed onto me the habit that I don't read in bedroom (even though for several years I did do that, more out of spite than anything else, probably in that period of my life when I rejected everything they taught me
), which is an amazing thing - bedroom is a place to sleep and rest, and to
only sleep and rest, as I was taught. Sort of your own little temple dedicated to one purpose only, without too much things inside (technology, books, etc), if the size of your apartment permits that. So, if you can, read in another room - that way you won't disturb the person you share room with at all, and will do them a favour, because
everything affects the quality of sleep, even little light and your constant turning of pages - not drastically, but it affects. Let them sleep and you nicely read in another room.
EDIT: Not also you affect the quality of their sleep, but also the quality of your own reading, especially considering the eyes... Reading with minimum light as some suggested is in most cases unwholesome for the health of your eyes.