Crib Memory Foam Mattress /w Spring Support Frame For Sale. GUC. Mattress is in excellent condition. No stains or rips. Dimensions are 52” L x 28” W. Mattress is 6” thick memory foam, which offers comfy support to baby/toddler. Comes with foam mattress cover and bed sheet cover. Asking $80. East Regina pick up. Listed on other sites.