I recently purchased new mattress and box springs thru USAMattress online! I gave the old mattress (which was only 6 months old and clean as a whistle, but uncomfortable to me) to a charity. When the old mattress was removed, before the delivery of the new ones, I was SHOCKED to see all the dirt and pet hair that had accumulated under the bed and along the bedrails. I used my vacuum to clean the entire area. When the fellas delivered the new mattress, one of the guys commented on "how clean" it was! LOL! He said people who have pets usually have the worst-looking beds. I told him I have three HAIRY ones, who sleep on my bed, but I had cleaned before he arrived. It made me kinda proud!