Twin XL Storage Bed Wide.
The ends twin XL storage bed should be flush. Run a 5/8 inch screw through the pilot hole to secure the sheet downwards. If you choose to use only a mattress, you might want to add two more cubbies in the middle of the layout to provide stability to the mattress.

Twin XL Storage Bed Asian

Twin XL Storage Bed Cedar

Twin XL Storage Bed Design

Twin XL Storage Bed DIY

Twin XL Storage Bed Furniture

Twin XL Storage Bed Image

Twin XL Storage Bed Simple

Twin XL Storage Bed White