Fifteen years of Special Ops plus several more years of 'Gate travel left Jack O'Neill with a tendency to sleep very lightly, which was just as much a curse as it was a blessing. In the field and off-world, the ability to awaken quickly due to a strange sound could mean the difference between life and death, but could also leave him groggy and tired the next morning. At home, the nocturnal explorations and exclamations of his neighbors' cats and dogs were sometimes enough to keep him awake all night, but for the most part, he'd de-programmed himself to sleep soundly if in his own bed.
Noises outside the house were one thing; noises inside the house were another. Jack's eyes flew open at the sound of a creaking floorboard, and darted to the alarm clock at the soft scuffle of a foot on carpet.
Three a.m. on a Sunday morning... Who would choose to break in at a time like that?
Jack blinked, then rolled over onto his back and sat up. "Danny? What's the matter, kiddo?"
"I had a bad dream."
Sighing, Jack reached over to turn on the bedside lamp. Scooting over and leaning against the headboard, he patted the covers next to him encouragingly. Danny took the hint and crawled onto the bed, dragging his favorite blanket and stuffed giraffe with him, and soon was settled against his daddy's side.
"Why don't you tell me all about it?" Jack asked, smoothing his little boy's hair away from his face.
"There were these green monsters all around, and you were trying to rescue a princess and had to fight them all off by yourself. And then a robot showed up and started shooting at all the greenies, and then Sam was there and she was saying something about black holes and solar eclipses and then... and then everything went dark."
Jack stilled. Danny might have been shrunk to a four year-old's size and temperament, but there was plenty of evidence he still remembered everything he'd known and experienced as an adult—in fact, the SGC still employed the little tyke for translations. Janet had cautioned Jack that Danny might experience nightmares from his adult memories, and since this sounded somehow familiar, Jack was trying to place the event himself.
A moment later, he slapped himself on the forehead. "Danny, that was an episode of Wormhole X-treme!"