Walmart offers the Spa Sensations 5" Twin Memory Foam Youth Mattress
in Fuchsia, model no. YB-500T, for $89
with free shipping
. That's $21 off and the lowest total price we could find, although we saw it for $19 less in August. This mattress can be used with a platform bed, daybed, bunk bed, or traditional bed and features a moisture barrier, polyester terry cover, and two layers of foam.