Given average life expectancy and time spent sleeping.
212016
Assuming that counting starts a 5 years of age (which is not realistic) and continues for 70 years (75 is life expectancy for a male in the USA) and that each number takes one second to count (the average would be closer to 6 seconds) and 8 hour per 24 was spent sleeping, etc., then\n\n70 * 365 = 25550 days.\n25550 * 16 hours / day = 408,800 hours.\n408,800 * 60 minutes / hour = 24,528,000 seconds.\n\n24,528,000 at 1 second or 4,080,000 at 6 seconds per number.\n\nIn actual counting trials, it has been estimated that the typical person, loosing places, getting bored and having to eat and wash occasionally would be lucky to be able to count to one million during their lifetime.
480007
I would say 70 and I was close. The real figure is 74.68 from this site\n\nhttp://www.sciway.net/statistics/scsa98/vs/vs8.html\n\nI don't have that much longer to live lol.... Joke... I'm only 14
649857
365 per year x 70 years (average life span)=25,550\n\n25,550 x 30 (smiles per day)=766,500. That number seems kind of small. :( Oops, I meant :)
419028
how to gauge??\n\nweekday:\n7 hours zzz(30%)... 9 hours society(40%) ... \n3 hours for himself and the rest frens and family.. (30%)\n\nweekends:\n35% rest, 40% family, remaining others...
253350
it depends \nsome people go sleep\nsome stay up and talk\nsome go where there going\nsome go take a bath\nsome watch TV\nit all depends on the persons and what they want to do
358564
Quality of sleep i.e. undisturbed and sound sleep matters more than duration. For an average adult, a good sleep on regular time to bed, does not require more than six hours to be able to relax the nerves fully and to get up fresh in the morning. Thereafter its all lazing and not sleeping.
593105
About half an hour usually.
62855
I work 45 hours a week, 12 hours on road, 56 hours asleep, 10 hours eating on average, 3 hours bathing. 168-126=42 hours to live. So we can say:\nC'est la vie.
170323
it assumes that that is the total number of hours the woman is up, and in a bra.  the other six of the day, are for sleeping. \n\n:-)
580781
The previous answerers are correct in saying that a lot of the world's population is in Asia, so that would be when the majority of people would be asleep.\n\nHowever, I suspect that if you were looking at the number of people who have access to the internet on a regular basis, then most of those would be based in North America, Europe and South-East Asia - so you would get a better chance of having an answer if you were to pick a time when those people were awake and on-line.
648100
The world for most people will end within 80 years.
231170
Apparently, sleeping less is one great way to increase your longevity... (see source)\n\nI don't agree with the comment regarding living in a 'First World Nation'. Currently, 1 out of every 6 children in the United States is obese. Maybe he meant "don't live in Texas".
426306
Average life span is appr. 6 weeks!!
243622
man...that's a long time to live.\n\nI would just sleep till that day...wake me up kay..?
363488
A good night's sleep.
346237
The prognosis for life is good. There may be residual paralysis or loss of sensation, though.
659776
probably between 16- 23 per hour