The month of Ramadan in which was revealed the Qur'an, a guidance for mankind, and clear proofs of the guidance, and the Criterion (of right and wrong). And whosoever of you is present, let him fast the month.... 2:185So Muslims fast every day during the month of Ramadan from dawn to dusk. It's one of the five pillars of Islam.
And what does fasting entail? Here's a list of things that invalidate the fast.
1- Intercourse(For a more extensive see here, where such important questions as "Does burping break the fast?" are answered.)
3- Eating and drinking
4- Anything that is regarded as coming under the same heading as eating and drinking
5- Letting blood by means of cupping and the like
6- Vomiting deliberately
7- Menstruation and nifaas
Well, that's clear enough, I guess. No sexual intercourse, masturbating, eating, drinking, bleeding, vomiting, or menstruating. (That's right, ladies, menstruating. Because Allah, like the God of the Bible, is disgusted by menstruating women.)
You have to go without all that stuff all day long. What's a person to do?
There's really only one good answer to that: sleep. Sleep as much as you can as long as you can during the day. Fasting is much easier while you're asleep and sleeping all day doesn't invalidate the fast.
That works great if you're a man (unless you have to work, that is), but not so well if you're a woman. Because a woman must spend all day in the kitchen preparing the huge feast (iftar) that breaks each day's fast, as well as shop for the food, clean up after last night's party, and prepare the morning meal (suhoor) that begins the fast the following day.
(There's a huge a competition among Muslim women to produce the most elaborate and extravagant iftar feast. Much more food is produced each night than can possibly be consumed, with the excess thrown away the next day, since leftovers are discouraged. And this goes on for the entire month of Ramadan.)
But for Muslim men there's only one plan for Ramadan: Sleep all day, party all night.
(I'm not making this Ramadan plan up. It is followed by most Muslim males, in so far as work, school, and other activities permit.)
Here's a song that expresses the idea exactly.