Sheet sizing for Raptor 355TS

[beaglething]

Anyone have advice on what size sheets do best on the Happijack bunks in the garage as well as the twin size loft off the kitchen area? They seem longer than standard or RV size sheets. I think I have the master king figured out.

Thought I had my kids talked into using sleeping bags but they've all revolted and want their beds to feel like home. :)

Thanks in advance!