Helix Luxe Sunset Soft King Mattress(multiple options)

Wayfair

Medium Hybrid Mattress Pocket Spring with CertiPUR-US Certified Foam

Amazon

Medium Firm Hybrid Mattress with Cooling Gel Memory Foam

Crate & Barrel

Beautyrest® Select™ Firm Mattress(multiple options)

Crate & Barrel

Tuft and Needle Mint ™ II Mattress (5 options)

Crate & Barrel

Naturepedic Chorus Organic Luxury Mattress(5options)

CB2

Helix Birch Organic Mattress(5options)

CB2

Helix Luxe Midnight Medium-Firm Mattress(3options)

CB2

Helix Twilight Luxe Mattress Firm Mattress(multiple options)