Yep. Its easy if one wanted to do it.
Top bunk
Bend knees
Bind feet back to knees
Knotted sheet around neck
Roll off top bunk
Snap, dangle, deed done.
Old time movie technique
Maybe a John Garfield, or early Bogart detective Noir.
The sheets are made from paper, specifically designed to easily tear in order to prevent this exact scenario.
Try again.
When one is serious about suicide, one will find a way.