Trundle Bed Twin Mattress.
Two twin-size trundle mattresses placed together the same size as one king size bed. This variety is also good for someone who does not care about the idea of sleeping so close to the floor. The top bunk is twin size, and the bottom bunk is slightly smaller, making it hard to find a trundle bed mattress that fits the bottom.
Black Trundle Bed Twin
Blue Trundle Bed Twin
Captains Trundle Bed Twin
Trundle Bed Twin Bed
Trundle Bed Twin Pop Up
Trundle Bed Twin To King
Trundle Bed Twin To Queen
Trundle Bed Twin Wood