10-15 minutes. When I was a kid I ran into the house and promply fell dow a flight of stairs in the basement. Next thing I knew, I was in my bedroom with the shades pulled.
Felicia,
37
Lowell, MA USA
I think I've slept for about 14-16 hours before after a long hike.
Alias Irrelevante
I don't know, I was unconsious and couldn't look at my watch.
KarenNJ,
45
Milltown, NJ USA
I passed out on Arnie Persinger's foot in the sixth grade. I saw sparkles, but I don't think I was actually unconscious. Other than that, I was out for several hours during surgery in 1999.
Cindy,
41
VA USA
Seconds.
Janet,
46
E. Brunswick, NJ USA
Hmmmmm....about 9 hours, maybe...during surgery.
Tam
A few hours under general anaesthetic.
Aly,
17
Cardiff UK
A couple of hours, when under anesthesia.
Jane,
63
West Linn, OR USA
I slept for 16 hours once.
Melodi,
19
Gahanna, OH USA
It was when I had surgery for my endometriosis, as far as I know.
Karen,
24
Ames, IA USA
I don't know... I was unconscious... I think it was 1 to 2 hours.
Laura,
38
Lowell, MA USA
I've spent several days in feverish sleep, but I've never been unnaturally unconscious.
Jill,
61
Saylorsburg, PA USA
Asleep or knocked out. If it's knocked out, then only a couple of minutes.
Keri-Jade,
23
Brampton, Ontario CANADA