do you need a box spring with a sealy mattress

CAVINAS Twin/Full/Queen Size Modern Platform Bed Frame with Headboard & Wood Slat Support,No Box Spring Needed

SinCiDo Modern King Size Bed Frame w/ 50" Tall Storage Headboard, Charging Station & LED Light, Curved Profile Design, Noiseless, No Box Spring Needed

Bed Frame Heavy Duty Steel Slat Mattress Foundation No Box Spring Needed Easy To Assemble Noise Free

VECELO Upholstered Crown-Shaped Kids Bed Frame Wooden Platform Bed with Adjustable Headboard, No Box Spring Needed

Platform Bed Frame with Wood Headboard & Footboard - Vintage Brown, 14" Height, No Box Spring Needed

King Leyton Mid-Century Modern Fabric Upholstered Platform Bed Gray/Walnut Brown - Baxton Studio: Rubberwood Frame, No Box Spring Needed

Bed Frame with 4 Storage Drawers, Velvet Upholstered Platform Bed with Tall Headboard, Wooden Slats Support, No Box Spring Needed

CAVINAS Twin/Full Size Upholstered Princess Platform Bed Frame with Crown Headboard,No Box Spring Needed,Cream/Pink

Full Bed Frame with Natural Rattan Headboard and LED Lights, Boho Wooden Platform, No Box Spring Needed, Noise-free, Arch

Queen Size Bed Frame with Storage Bookcase Headboard - Wood & Metal Frame with 4 Storage Drawers, Charging Station, No Box Spring Needed, Noise-Free

Twin Bed Frame with Seashell Headboard, Bed Frame with Wooden Slats Support, Metal Frame, Adjustable Headboard, No Box Spring Needed

Upholstered Bed Frame with Wingback Headboard, Velvet Upholstery Platform Bed, No Box Spring Needed, Wood Slats Support, Easy Assembly

INFURNIC Beds, Platform Bed with 6 Heavy Duty Legs Support and Headboard, No Box Spring Needed for Bedroom, Black, 80"*50"*40"

Whizmax Bed Frame, Boho Rattan Headboard, Heavy Duty Metal Slats, No Box Spring Needed, Noise-Free, Easy Assembly

NicBex Full/Queen Vintage Platform Bed Frame with Natural Rattan Headboard and Footboard,No Box Spring Needed,Solid Pine Wood,Black/Walnut

Whizmax 6 Inch Bed Frame No Box Spring Needed, Heavy Duty Metal Platform Bed Frame Twin Size for Bedroom Easy Assembly, Noise Free, Black

Sapphtopaz Upholstered Bed Frame with Wood Headboard, Strong Wood Slat Support Platform Bed, No Box Spring Needed

Bed Frame with Steel Slat Support

Full Oxford Bed with Footboard and USB Turbo Charger with Trundle Gray - AFI: Mid-Century Modern, No Box Spring Needed

Racxily Twin-size Loft Bed w/ Table & Shelves/ Heavy-duty Sturdy Metal/ Built-in Table & Shelves/ Noise Reduced/ CPC Certified/ No Box Spring Needed

NicBex Queen Platform Bed Frame with Wood Headboard and Footboard,LED Lights and Charging Station,No Box Spring Needed,Easy Assembly,White/Black/Brown

NicBex Twin/Full Size Montessori Toddler Floor Bed with House-Shaped Design for Kids/Boys/Girls,Wood Slats Support,No Box Spring Needed,Easy Assembly

Kids Twin Bed Frames with Adjustable Headboard, Modern Upholstered Platform Bed Frame with Sturdy Wood Slats, No Box Spring Needed

coucheta Bed Frame with 2 USB Ports & 2 AC Outlets, Heavy Duty Metal Bed Frame with Headboard and Footboard, No Box Spring Needed, Easy to Assemble