How long you can sleep?  

i can only sleep 2 to 3 hours at a time then wake up for about 10 to 15 minutes an fall back asleep

I can sleep 6 hours only...

Sleeping, no way it is real difficult for me to sleep for longer hours.

48 hours aaaaaaahh i think its tooo much i cant sleep that long normally i sleep for 8 hours when m awake for 2,3 days on special occasions maximum i sleep is 10 hours or 12 not more than that.,

Most nights I have around 6 hours but I have been able to sleep up to 10 hours when I am extremely tired but it can be very bad mentally when the human body does require a proper sleep, but when people are getting older they mostly sleep less than when they were young.

I cant sleep for more than 12 hours. But I may be awake for 48 hours in emergencies.

I only sleep about 6 or 7 hours a day...sometimes lesser I am a busy person and when my kids are noisy and my husband as well..I tend to wake up more.

The longest time that i can sleep varies from 12 to 16 hours.
I cannot sleep for 48 hours.
I dont think so.

i sleep at least 4 hours. sometimes i get to sleep up to 8hours or more. but very rarely does it happen.

I can sleep up to 12 hours depending if im lacking in sleep. But if I have enough sleep I can only sleep 8 hours.