Do you use Hibernation in Windows 7?

I don't use hibernation with Windows 7 as I am only running Windows 7 on my desktop..and I disable hibernation on my desktop. My laptop is running Vista and Ubuntu...and I do hibernate on my laptop.

I always hibernate my win 7 laptop. Wake up is less than a couple of seconds and it is perfect for keeping the state of it intact as I go from work to home and back to work the next day.

Not had a problem with it (using 7600 RTM 'pro' of 7 on a Dell).

I couldn't live without hibernation on my laptops. Mainly for saving state like others have mentioned and partly in lieu of using sleep when I'm not sure when I'm going to resume using it. Keeping the RAM powered in S3 sleep drains my battery at 1/2 to 1%/hr so if I put it on sleep and don't get back to it until the next day, the battery can be down 15-20%. Hibernate (and it's 10 second resume) avoids any sleep-related battery drain for me.

I sometimes use hibernate on my main desktop if I have a lot of things open. Despite having more than 4GB of RAM (it has 8GB) it will hibernate using the "On" button and setting advanced power options to hibernate when the "On" button is pressed.

Sleep and hibernate work flawlessly for me in W7 (as they did in Vista).

Creer said:

But what is the real reason why people use hibernation instead of sleep mode (S3) on their desktop machines.

A "sleeping" laptop could potentially overhead and die while ensconsed in its warm, airtight laptop bag during a long flight. Personally, that is my primary use for hibernation - I like knowing that the laptop is entirely OFF when it's sitting in its bag, and yet I can get back to whatever I was doing as soon as the machine powers up again.

Creer said:

BTW. I use now Windows 7 RC build 7100, and I noticed that when I resume from hibernation state then after ~2-4minutes my PC hang on - only 'hard' reset helps ;/
I hope I don't find this issue in RTM version which I've ordered.

Then the thread is asking the wrong question, with all respect.

Instead of "do you use it?", the real question becomes "why does my machine have a problem with it?".

As a suggestion, make sure the BIOS and drivers are all up to date. Power state transition problems are almost always caused by issues with the BIOS or bugs in kernel-mode drivers.