This happens to me, too.
KSP version including Windows, Mac, or Linux, 32 or 64-bit, and if it's Steam
KSP 1.1 64-bit, Windows x64, Steam
A detailed explanation of what happened and what you were trying to accomplish
With KSP running, and with the "Pause menu" (i.e. hit esc midflight) up, either put the computer to sleep or switch to a different Windows user. When the computer wakes, or return to the KSP user, KSP shows the crash dialog.
A screenshot of your craft or any relevant screens
Not relevant - happens with all craft, happens during flight and while in VAB and while at KSC.
A .craft file or save files if relevant
The ouput_log.txt or player.log file KSP creates when it launches and, if applicable, the crash log KSP has generated when the program crashed
A detailed list of system specifications
Intel Core i7-4710HQ, 16GB 1600MHz DDR3 RAM, Nvidia GeForce GTX970M 3GB with Optimus + Intel HD 4600, 256GB SSD
Are you running a clean installation, or have you updated and some of your persistence or craft files might be older versions, if so which version(s)
Upgraded from 1.0.5, new career game with scratch-built craft