Here's a smart idea: if you want a peaceful night's sleep (or at least as peaceful as it gets with a 3 1/2 yo and a 4 month old) make sure to change the batteries in your smoke detector before they get bad enough to start chirping on and off all night. The good thing about this is that it reminded me we need to buy a fire ladder with that gift certificate we got for Christmas (our bedroom is on the second floor of our house).