Beware of Slacking in acts of worship during the Month of Ramadan by Sheikh Muhammad ibn Saalih al-'Uthaymeen, may Allah have mercy upon him.
Excerpt from the article:
["O Muslims! Indeed many of the people are (very) heedless in this Month. They spend their nights in senseless matters that do not contain any benefit in them. Rather, these matters could quite well be detrimental for them. They loiter around in the market places waiting for suhoor (pre-dawn meal) until when the time for suhoor comes, they eat and may even oversleep the fajr prayer.
As regards their day(s), majority of them are spent sleeping. They don't benefit from them. And this, by Allah, is (without question) bereavement......"]