Is there a weight limit for the mattress? February 01, 2019 11:53 Updated Follow Anyone in any shape or size can use a Simba mattress. Our 10 year warranty however, only covers a maximum weight limit of 18 stone (114kg) per sleeper for our adult Hybrid® mattress and 15 stone (95kg) for our Hybrid® Bunk Bed Mattress. Related articles Will I feel my partner move around at night? How deep is your mattress, will my sheets fit? Do I still qualify for the 100 night trial if I paid using financing? How firm are your mattresses? How does the 100 night trial work?