[To be fair, it's not like running into one another would've been a one sided failure. She presumably has ears capable of paying attention to the sound of footsteps around a corner just like the rest. Shepard abruptly shortens her stride, turning her shoulders in an effort to avoid a collision that Kaidan's already pretty much averted without her help.]

Major. [The 'figure that out by yourself?' goes unspoken, though maybe it's visible in the slight eyebrow quirk. Instead she goes with:] Just up for a coffee run.

[So no, she can't sleep - but like hell she's going to say as much. Not that avoiding the topic of her own sleeping habits keeps her from commenting on his own.] Isn't eight hours of rack time supposed to be part of your outpatient recovery plan?