Does not cover mattresses with loose fillings (i.e. bean bag type) or mattresses with covers which are not level and can form pockets (i.e. button down type).Cross References:Furniture and Furnishings (Fire) (Safety) Regulations 1988 Furniture and Furnishings (Fire) (Safety) (Amendment) Regulations 1989Furniture and Furnishings (Fire) (Safety) (Amendment) Regulations 1993 BS 1425:Part 1:1991BS 1425:Part 2:1991BS 1763:1975BS 2739:1975BS 3173:1996BS 3320:1988BS 3379:1991BS 5455:1977BS 5665:Part 1:1989BS 7337:1990BS EN 71-2:1994BS EN 71-3:1995BS EN ISO 105-E04:1996 BS EN ISO 3385:1995BS EN ISO 5084:1997