Bunk Bed Excitement

My girls are growing up and moving on to bigger beds.  Linnea outgrew her toddler bed many months ago so has been sleeping on her twin mattress on the floor.  Sofia has been trying to escape her crib recently and wakes up her sister with her "Mommy" call.  We chose a beautiful white kids bunk bed that gives the girls a lot more space in their room to play.  It's low enough to the ground that Sofia can climb in and out easily.  The girls "helped" put it together!  When bedtime came, it took nearly an hour to keep Sofia in her bed.  Linnea was a little nervous about going up and down at night if she needed to.  We set up a night light for her.  Eventually, even the excitement of a new bed couldn't keep them awake.