I made new drawers from scratch for beside each side of our bed. I got the drawer fronts from our dealer so they'd match the rest of of our interior. The drawers are quite deep - 22" IIRC. I used Knape & Vogt "stay close" drawer slides.
The 2nd photo shows the drivers/left side. I also built drawers for the under-bed storage. The TT originally came with just a cubby hole opening on one side and the other was blocked out with a piece of luan plywood. A cubby hole is useless. The drawers are very useful. You'll need at least a table saw or access to one. A chop saw would be helpful but can get away with just a table saw.
I made the drawer fronts for the under-bed drawers from scratch because I needed custom dimensions. For the drawer fronts beside the bed I walked around the dealer's lot and found some from another model that were the right size.