The lazywriter is supposed to sleep a lot. That's why it's called lazy. 😉 There are a fair few wait types that should just be ignored.
As for the OLEDB wait, I'd conclude you're using linked servers a lot.
Is there a particular problem that you're investigating here?
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability