Walmart offers Spa Sensations by Zinus 5" Memory Foam Twin Youth Mattress, Blue for $85 (orig. $107.54) with free shipping.

Product Description:
Your child can get a good night's sleep with this Spa Sensations 5" Memory Foam Twin Youth Mattress Multiple Colors. Its base layer is made of breathable HD foam to help keep it clean and cool all night long. This comfortable Spa Sensations twin mattress is made of memory foam for extra support and features a fun, vibrantly colored polyester terry cover. Natural green tea is embedded in the foam to help repel bed bugs and mites and protect from odors. This Spa Sensations 5" Memory Foam Twin Youth Mattress Multiple Colors is just the right size for almost any bedroom. It comes in assorted colors to add a pop of light and fun to your little one's room.

Thanks Maggie