The Teddy Bear RV Bunk Bed Mattress, # LC380765 is 8 lbs. The mattress has a hypoallergenic polyester cover and is made from a polyester fiber. There is not a weight limit listed for mattress itself. I suggest you limit the weight to that of the RV manufacturers spec for the bunk this mattress will used with. Lippert warranty is for 1 year from the date of purchase for defect only for first owners. view full answer...