Is it good for a period of 1-2 hours? Explain.
Yes. That's what they invented TV's for, isn't it?
Two things knock me out almost immediately: TV's and riding an airplane (on an airplane, the oxygen level is knocked down a little making it real easy to fall asleep).
I think js's answer is relevant to the question. If you actually have a biology question try that forum. This is General Discussion, also known as GD
I said "depends on when" because 1 - 2 hours is a lot of time to just sleep away. There's a lot more you could be doing. So what I do is take naps during class.
I try to avoid taking naps, they mess with my sleep cycle.
"When I was at NASA we gave the pilots a planned nap in the cockpit," says Rosekind, who is a board member of the National Sleep Foundation. "While two pilots flew the plane, the third would have 40 minutes to nap. We found they would sleep for 26 minutes, which boosted their performance by 34% and their alertness by 54%."
No, if the nap is to do any good it has to be at least 3 hours long. Thats why military pilots on long range flights are allowed to take 'power naps' 3-4 hours in length. Less than that, and you lose coordination and dont wake up 'refreshed' if your pulling long hours.
That's the whole point...I take them when I know my sleep cycle will be disrupted anyway. It's also why I answered "it depends." If you're only going to delay doing something that could be done by the time the nap time would be done and disrupt your sleep so you're in the same pattern the next day, it's not worth it. But, if you know you have to be up all night anyway, and that night might get a bit shorter if you aren't making mistakes because you're exhausted, then a nap is just the thing.I try to avoid taking naps, they mess with my sleep cycle.
That's the kind of answer I was looking for. The main disadvantage of naps seem to be disturbing sleep.
When I say refer to taking a nap, I always mean at an appropriate time when other committments are not affected. So the only trade off in that case would be not being able to sleep as well in the night. Hence Moonbear, your answer wasn't quiet on ball.
(on an airplane, the oxygen level is knocked down a little making it real easy to fall asleep).