In alt.comp.os.windows-10, on Mon, 19 Mar 2018 11:58:03 -0500, jetjock
wrote:

On Mon, 19 Mar 2018 07:05:02 -0400, Paul
wrote:

Andy Burns wrote:
Tim wrote:

I put my system to sleep [...] what is Windows doing for those two
minutes that results in continuous disk activity?
writing to the hiberfil.sys file?

S3 Sleep
S3 Hybrid Sleep (writes to hiberfil.sys first, then sleeps) --- power safe
S4 Hibernate (writes to hiberfil.sys) --- power safe

From an Administrator Command Prompt

powercfg /h off

disables both Fast Start and removes the hibernation file,
so that Hybrid Sleep and Hibernate are no longer options,
and when you select Sleep, the delay for Sleep to start
is a lot less. It's still not a zero delay, but there's
less trailing-end-writes when you try to sleep Win10.

I disable hibernate, just to reduce the size of the space
taken by hiberfil.sys on SSD drives.

Paul

My wife's Win 10 machine does have the sleep option--only hibernate.
Is there a way to get sleep back, or is there no sleep mode in Win 10?

I don't know about your wife, but on my win7 laptop, Hibernate
disappeared one day, even shutting the lid is still set to hibernate and
it does. But it's not in the list that shows when you click on Start.

So maybe you can get shutting the lid or pushing the power button to
sleep it. Of course you need the power button for turning it off when
it won't turn off.