Don't walk around with a sleepdeficit; that's a heavy debt to carry.
2
I seem to be accumulating quite a sleepdeficit.
3
Writing with a bad sleepdeficit feels like sitting an exam for which I've done no revision.
4
Brad, of course, had his schedule to keep and wanted to make sure he got enough sleep to counteract his present sleepdeficit.
5
Most people in modern society, he said, have sleepdeficits they never make up because our lifestyles encourage constant work activity and caffeine use.