Quoting P.S I'm pregnant ♥1:" DS is 3.5 and we just moved into a small duplex. We plan on living here for about a year and then getting ... [snip!] ... SO wants to build him a bed, but this room is too tiny imo, I think we should wait till next year"
I would do the twin. MaKenzye's room is a SMALL room. Only 10x9 and this is the twin size bed we are getting. It is a low loft junior bed (It's only 36 inches off the ground so not that high
And has the dressers and everything built in to help with the space issue
It's designed for a room exactly her size