Amazon has Amazon Basics Foldable Metal Platform Bed Frame (Twin XL) for $21.04. Shipping is free w/ Amazon Prime or on orders $25+.
- Folding mechanism makes the frame easy to store and move in tight spaces
- Provides extra under-the-bed storage space with a vertical clearance of about 13 inches
- Fast, easy setup—no tools required
- Made of durable steel with a sleek black finish