true, Flannel, Memory Foam, false

Sersper Memory Foam Baby Crib Mattress and Toddler Mattress, CertiPUR-US - 52"*27.5"*6"

Intelligent Design Cozy Soft Cotton Flannel Printed Sheet Set

6 inch Crib Mattress, Baby Crib Mattress and Toddler Mattress, Breathable Waterproof and MovableCover - 52"*27.5"*6"

Crib Mattress with Washable Cover,Dual Sided Baby Crib Mattress &Infant Toddler Mattress, Water Proof Mattress

Cozy Line 6-Pack Pink Brown Green Dot Stripe Sports Animal Floral Baby Girl Boy Unisex Cotton Flannel Receiving Blankets

52"*27.5"*6" Crib Mattress,Washable Waterproof Cover for Baby and Toddler,Fit for Standard Cribs and Toller Beds