White Noise! (child anxiety)

Three nights ago, as I listened to my two kids hack these dry horrible coughs during the night, I vowed to break out the vaporizer the next night. I got it all cleaned up and ready to go. Saturday night I set it up and turned it on. I read to the kids as usual, and waited for my son to fall asleep so I could start the (new) nightly process of listening to my daughter go through her list of statements and questions, then go downstairs. Every night I wait about 15 minutes, then go to "check" on the kids, something my daughter has been insisting on. After a few minutes, it became obvious that neither kid was going to sleep, and I felt my irritation rising. After a couple of minutes I announced that I was going downstairs, and would check on them in 15 minutes. I left, certain that my 3-year-old would follow me down the stairs in less than one minute. I came down, and listened through the monitor. Nothing. Huh? I looked at DH and shrugged my shoulders. Not a peep. Just the whisper that the vaporizer makes. 15 minutes went past, and DH offered to go up to check on them. Both were sound asleep. After the couple of weeks we've been having with nights that seem to get late quickly with at least one and sometimes two restless, anxious kids, I was astounded. I informed DH that if the vaporizer had anything to do with it, we would be running it every night for the rest of time. Sunday night comes, and DS actually falls asleep on my lap during dinner, having missed his nap. (We had a small make-up birthday party for him yesterday, after having to cancel his party last weekend due to illness) I put him on the couch where he slept while we finished up. I went upstairs with DD to get her ready for bed. She complained of being very cold, and I instructed her to get into bed while I went downstairs to collect DS. I set up that beautiful maker of mist..... and headed downstairs. I brought DS up and put him in the bed. I turned to DD to read some books - what?? I whispered her name. Nothing. She was asleep. In the 3 minutes I had been downstairs, this little girl had conked out!!! I was astounded. I turned out the light and tiptoed my way out of there. Yes, a couple of minutes later she realized what had happened and called out. But when I went to tell her what had occurred, she obviously didn't want to back up and start the routine over. She was done. She and I said good night. She did call one more time, for a bathroom break, and that was it. Both children were asleep. Just like that.

Please oh PLEASE let it keep working!!! =)