The little nook around the window is a few inches larger than the average full size mattress - making it the perfect place for a bed! (andchristina.com)
The EverTrue ™ Elite Full is a 7.5» thick, full size mattress, features an open cell, viscoelastic memory foam topper, for comfort and temperature control. (colgatekids.com)
She sleeps on a full size mattress that just so happens to fit in a nook that is beside our bedspace. (quirkyandthenerd.com)