So I had just fallen asleep last night when the sound of the phone ringing woke me up. I tossed off the covers, ran for the cordless (it's across the room), and wasn't very happy when it stopped ringing before I could reach it.
Then I looked at the Caller ID readout.
The phone hadn't rung.
Turns out, the "ringing" I heard had been the dishwasher beeping the end of its cleaning cycle.
Run the dishwasher earlier in the evening. And maybe move the phone next to the bed.