So last night, a friend of mine popped a few sticks and smoked some weed a few hours before bed. When he did decide to go to bed, he fell asleep almost instantaniously (He usually has sleep troubles). Over the course of the night, he's had several episodes of sleep paralysis and he thinks this is because of the Xanax. This has also happened the only other time he's take Xanax before or around a few hours before going to bed. In the past, he's always been the type to experience sleep paralysis quite often too, just never more than two or 3 times a week. Usually he'll have one at least once a week.