Well, based on what the experts have mentioned; sleepiness can have a side effect if you exceed the amount of sleepiness… oversleeping has widely been approved as being a fat factor! The effects of oversleeping helps the stomach to gain some fats as well as some bloating… therefore; we should always try to take enough amount of sleep daily… besides, stop eating late at night or within 3 hours before the sleeping time, and try to drink warm glasses of water instead of drinking cold water to lessen the fat as I myself do that from time to time…