Needless to say, prayer is always in order. If you're too tired to pray, try remembering something funny that happened to you or someone around you. Often times, I find myself getting goofier when I'm sleepy. If someone is around, I'll begin to makes jokes on my own self by telling whoever it is that they might have to call the "medics" 'cause I'm 'bout to go down! Yes, I result to slang talk rather than normal English speaking.