I drive my poor wife mad with it! I can be watching a good film on TV, and falling asleep in the chair, get up, go to bed, and I'm suddenly wide awake. I can't take sleeping tablets because of other medication I take. If I have a drink (of any sort, hot chocolate or a Scotch) after 8pm, I'm in and out of bed to the bathroom, I have a pile of reading and puzzle books etc by the bed, but the light disturbs my wife, and those silly little book lights aren't bright enough for me. I got me a telescope and put it in the loft - it's wonderful, looking at the stars, but I can be there for hours, then when I'm tired, it's getting up time!