Update creator docs to reflect improved sleep system

[ericdow]

Changes

Update the creator docs to reflect recent improvements to the sleep system. This forum post details the improvements.

Checks

By submitting your pull request for review, you agree to the following:

• This contribution was created in whole or in part by me, and I have the right to submit it under the terms of this repository's open source licenses.
• I understand and agree that this contribution and a record of it are public, maintained indefinitely, and may be redistributed under the terms of this repository's open source licenses.
• To the best of my knowledge, all proposed changes are accurate.