Hibernate a user account when switching to different account in Windows 7 Home Premium (64bit)

Is there any way to have Windows 7 hibernate Bob's account when switched to Mary's account and vice versa? I.e.:

1. Bob is logged in


2. Bob clicks Start >> shutdown >> switch user


3. Bob's session is saved to disk


4. Mary logs in


5. Mary's session is restored as it was when Bob's turn started

Both are heavy users (30+ chrome tabs open, multiple documents, multiple spreadsheets, music playing, etc) I would like to set up the system so that each gets the full use of the computer while still having all their open apps the way they left them.

I suppose I could try setting up a VM for each, but I'd rather not add anything else to the mix here if I don't have to.

This is Windows 7 Home Premium 64-bit running on a Lenovo G550 laptop