Mattresses and Accessories - Pinnacle Plus, 6" x 36" x 80" : The 36"x80" Pinnacle Plus Grey Standard mattress has a foam core and sealed seams to help keep dirt, moisture and bed bugs out of the mattress. The Pinnacle Plus is designed for people over 250lbs. The cover can be wiped and disinfected. Comes with an inegrated pillow in the core and has a 5 year warranty against the cover cracking or the seams breaking