Does anyone know what size of mattress will fit 2015 Suburban with the 3rd row down?

 

I would not bother with a real mattress , use a slab of foam cut to size

 

get out your tape measure.

 

That's the problem with these new Suburbans, with their high price tags I'd have to sell the house and sleep in mine. A 4x8 sheet of plywood fits with 3rd and middle seating down, so that would limit you to a super twin which is the width of a twin AND the length of a queen or king. The interior may hold a full size width but I don't think that will fit through the rear hatch.

 

I was able to get a full size mattress almost perfectly with the 3rd row down - thanks for the help

 

Can you tell me about the size of the mattress you have bought and also tell me from where you bought it?
because I am also interested to buy King: 76” x 80” | 193 X 203cm, and I saw it on nest bedding coupons, but before buying I wanna make sure about the size.
Can you show a pic of your one?

 

Welcome to the forum.

Check out Post #3.

 

queen size