The opinions stated here are my own, not necessarily those of Google.
Yes, it is at Google. Our important and high visibility bits have SREs that help monitor our services (SREs actually approached us to take over some bits that were more important).
Google has a lot of oncall people that aren't going to go into a data center (most googlers never see a data center). So there is lots of oncall rotations that still have an SLA that can be handled from their bed if it happens at 2am.
Yes, it is at Google. Our important and high visibility bits have SREs that help monitor our services (SREs actually approached us to take over some bits that were more important).
Google has a lot of oncall people that aren't going to go into a data center (most googlers never see a data center). So there is lots of oncall rotations that still have an SLA that can be handled from their bed if it happens at 2am.
(I sadly can't give any examples)