I'm with Happydasiy, I love the night, from the time evening sets in, right through to pre-dawn, I even like the first hour or two of the morning. As Shattered says, the quietness maybe? The fact that the rest of the world's asleep and it's all calm, but also knowing there are other night people around so actually I feel less alone at night than during the day. Bit weird really.

Also around about 2 or 2.30 in the afternoon I suddenly fold - get really tired and down and the day itself feels all tired and used up and dusty. Then by early evening I (and the day) seem to pick up again - anyone else find this?