A minus was that he couldn't sleep on his stomach.
"I have to sleep on my stomach," she said, a smile playing around her lips.
He fell J asleep and slept for hours, on his stomach.
He'll be sleeping on his stomach for the next month or so.
He'd never slept all that well on his stomach, and he couldn't help worrying about the days to come.
An example they gave is: The S was sleeping on his stomach.
I want to stop being able to sleep on my stomach.
If you sleep on your stomach, let your feet hang over the end of the bed.
Avery was sleeping on his stomach, his head turned to one side.
He refused to sleep on his stomach any longer.