:sleep: vi. 1. [techspeak] To relinquish a claim (of a process on a
multitasking system) for service; to indicate to the scheduler that
a process may be deactivated until some given event occurs or a
specified time delay elapses. 2. In jargon, used very similarly to
v. {block}; also in `sleep on', syn. with `block on'.
Often used to indicate that the speaker has relinquished a demand
for resources until some (possibly unspecified) external event:
"They can't get the fix I've been asking for into the next
release, so I'm going to sleep on it until the release, then start
hassling them again."
-- The AI Hackers Dictionary