Waitopedia is a comprehensive resource of information about SQL Server waits.
The description shown below is the top answer as voted by the Spotlight community.
The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.
SP_SERVER_DIAGNOSTICS_SLEEP
This is an idle wait and so it can be safely ignored.
What is SP_SERVER_DIAGNOSTICS_SLEEP?
This wait never occurs for most instances
For each of 4207 instances, we ranked SP_SERVER_DIAGNOSTICS_SLEEP on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.
Prevalence of SP_SERVER_DIAGNOSTICS_SLEEP across the Spotlight Population
For 82 % of hours with this wait, average wait time is less than 16 seconds
For each instance, we found all the recent hours when it had a SP_SERVER_DIAGNOSTICS_SLEEP wait. We found the average latency for each of those hours.
846 instances contributed data to this chart