For boys, you can try getting the best loft bed with slide. (bassinetandcrib.com)
I have plans to build a hanging loft bed in a couple of month - I hope my studs are okay, but I'm glad to know there is always a backup plan. (mylove2create.com)
It has a full - sized loft bed for an older child and also provides more room for study and storage below. (thespruce.com)