My ssd is not detected by bios help

Assuming that the SSD didn't die and shows up either in the disk mgmt or in a disk repair/recovery program like Recuva, I would try to simplify by resetting the bios to whatever setting you previously used successfully and then disconnecting all other disks before trying to fix it, but first make a system repair disk (type that in the start run box and follow the wizard) then leave that CD in the CD/DVD drive when you start up to repair the SRP/bootloader.

Once you get it fixed, lose sleep mode -- nothing but problems with SSDs, instead just shutdown your monitors after a reasonable period.

when i woke up after å long sleep i tested the SSD on another pc is this a sign of its death or?

That is a known bug in that drive and there is supposed to be a firmware fix. Take a look at the Corsair SSD forums for information on how to fix it, here is one short post: http://forum.corsair.com/forums/showthread.php?t=97417

If you can get it working or get a replacement, I strongly suggest not using sleep or hibernate as the firmware update does not fix all the issues with those states.