How long do you usually sleep a day?

Depends actually. If I don't have any appointment then it will be 6-8 hours but if I have something planned then I sleep like 3 hours.

I try to get 8 hours of sleep. But, I am not always able to. Lately it seems like I don't get any sleep at all! Maybe I'm just not very comfortable! *snores* ZZZZ.... ;)

6-7 hrs. i think its average.

it depends completely on what i'm doing in the day or whether i am feeling well or sick. generally i sleep maybe 6-7 hours. there was a research programme many years ago that found that the body does not definitely need to sleep but it does need to rest and i think sleep just occurs in your brain to help the resting. if i have had a busy day i will nod off around 8-9pm for an hour or so then wake up and go to bed later :)

I usually sleep 7 to 8 hours. I don't like to take naps, because I find that it's hard to sleep at night if I take a nap. If I'm really exhausted, maybe I would take a nap of less than 1 hour.