Ideas Trundle Bed Couch.
This is where the bed platform does that claim to fame. Many models also have platform beds available for extra storage drawers, which increase their already extensive flexibility. Other frame types are all one piece and just roll out under the mattress top.

Baxton Trundle Bed Couch

Beauty Trundle Bed Couch

Best Trundle Bed Couch

Design Trundle Bed Couch

Grey Trundle Bed Couch

Large Trundle Bed Couch

Luxury Trundle Bed Couch

Wonderful Trundle Bed Couch