Are Daybeds Full Size?

The daybed and trundle set fits one standard full size mattress and one standard twin size mattress (sold separately).

What size is a full size daybed?

The dimensions of a full-size daybed with trundle is 56 in. x 77.5 in. x 41.5 inches. In general, full-size daybeds will have a twin sized trundle bed underneath with dimensions of 38 in.

Are there different size daybeds?

Daybed mattresses are most commonly 39 by 75 inches, or the same dimensions as a standard twin size mattress. Some daybed frames use full or double (54 by 75 inches), twin XL (39 by 80 inches), and narrow twin (30 by 75 inches). Daybed frames are compatible with standard mattress sizes, so shopping is straightforward.