Includes twin innerspring mattress with twin foundation Mattress comfort level: firm Mattress with 2" high-density quilt foam; high density pad; 13-gauge Bonnell coil unit State recycling fee may apply Mattress has 10-year non-prorated warranty Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening Foundation with sturdy metal frame; headboard brackets included Foundation sets up quickly; no tools needed Assembly required