Oversized RAM vs Hibernation

I have this wierd problem. I bouught 16GB of Corsair Vengeance RAM. It works wonders except for the fact that my laptop does not hibernate after 6 hours in sleep mode. Plainly the reason for it is that I don't have enough space on my HDD to dump all 16GB of data (I have like 7GB free on system partition). Is there any way to set it so that it only dumps that part of the RAM that actually has data in it (I rarely go above 6GB unless I'm gaming, in which case I wouldn't shut my laptop anyway). How SSD users get around this problem? I believe it would have bad impact on my battery life/health... Also, I don't see it's as safe as before, to discharge my battery until shutdown (given it cannot dump entire RAM and hibernate). Any fixes for it? Improvements and such?

 

i upgraded my ram to 16gb, and even though i don't use hibernation, just leave my laptop on overnight, put to sleep when I gotta shove it in the backpack to go somewhere.

i never use the all 16gb, got SSD too, so i got me a ramdisk, ( RAMDisk : High-performance RAM Disk for Windows ) free, works really well too, just creates like a flash drive there, massively fast, copies files in it instantly, but games don't load much quicker than from SSD, as other components bottleneck. anyways i put my ramdisk at 8gb and left other 8gb as ram, so effectively you could create ramdisk for instant access files/games etc. (keep in mind ramdisk will be wiped on reboot and i assume hibernation, unless back-up'ed) and keep 7gb or whatever for windows to use, which it would also save on the SSD, instead of the whole 16gb.