Am I Only Dreaming?

Okay, so last night the hubby and I follow the regular routine. I complain enough that he finally gets off the computer. We watch a show or two on our tivo.....quickly running out of new entertainment and we're going to have to start purchasing new stuff on i-tunes if the new seasons here don't kick in soon. Oh but that is not my point at all. So, we watch a csi or 2 and then it's bedtime. It's been a bit warm here during the day and the house is just getting stuffy so come evening I'm opening up the upstairs windows to let some air through the house. It is nice and comfy and I drift off to sleep. MAYBE two hours later I hear this siren, of course it is the smoke detector. I shake the hubby and tell him the smoke detector went off. Of course it isn't going anymore but that doesn't seem to bother me. We both jump up and wander around the house, everything is in perfect order. No smoke, no fire, nothing. I get back in to bed and wonder for a moment if the dryer is on in the garage. Is there a fire somewhere we missed? Seriously though, if there was a fire in the garage that set off the upstairs smoke detector you would think we would have noticed. I convince myself there is no fire and go back to sleep. Of course now I'm sure I was caught in one of those 1/2 dream 1/2 awake moments and that the smoke detector probably never went off at all. The hubby hasn't mentioned it, perhaps he's busy looking up phone numbers to the nearest loony bin?