Long periods of time without sleep was sadly normal for someone who had lived through (and remembered) many timelines like you had. Whether using coffee or sheer force of will, there were times that you had to force yourself to power through.
Your crew, on the new planet, was worried. Most people who worked closely with you tended to know of your horrendous sleep schedule, and nearly all of them had walked in on you asleep at your desk at some point or another. Sometimes, you would be awoken from the nightmares of your "past." Other times, they would catch you gazing down at your hand, eyes showing something that only one of them could place - the only other one who remembered some of what you both had been through.
...but not all of it. How could he remember all of it? He had gone mad trying to keep you from destroying the universe when you knew it had been him from the beginning. Not the beginning-beginning, sure, but the way he acted...sometimes, you had wanted to smack him. To yell at him. To grab him by the front of his collar, shake him, try to get anything out of him except for the same accusatory words or mad ramblings or for him to remember -
But you didn't. You did not know everything he remembered, just as he did not know what you remembered. And once more, as you watched the sun rise without adequate sleep for the third day in a row, while the feeling of dread crawled up your spine, sinking its needle-like claws into the space between your vertebrae and holding you close as a lover would...you reminded yourself that today was a new day.
Today was a new day, and you would rather rot in hell before you let anyone take that from you.