Shinobi lives were active and violent to be sure, but they weren't always so. Sometimes there was down time just as with civilians. They had times of rest and breaks between violence and activity, too. They also needed quiet, stillness, and comfort.
She didn't always stay in a bed with the Hokage, unless they were on a rare trip, where Konoha's money was better served elsewhere than an extra bed.
When she did stay with the hokage though, she rarely tried very hard not to cuddle up to her mentor. The warmth of another human was almost always welcome, and she suspected it was even more so for Tsunade.
It was rare, though, that she could curl up behind the older woman and be the one to link her arms around her mentor instead of the other way around. Her mentor felt solid, strong, full, not at all like the shriveled old woman she'd seen unconscious for so long.
She tucked her face against the hokage's shoulder, and linked her arms around the woman, forming a sort of protective cage with her arms, and willed the image of the young woman in front of her to override the frail one inside.
