Serta iComfort Blue Fusion 300 Plush Pillowtop Hybrid King Mattress Set

by Serta iComfort |
Item # 980101886
Model # 500821173-9960 |

Why we love this

This plush, yet supportive pillowtop mattress combines an advanced support coil system with cooling memory foam for a more comfortable night’s sleep.

About this item

  • TempActiv™ Gel Memory Foam and EverCool® Fuze Gel Foam enhance breathability and pressure relief
  • TempActiv™ Balance Cover provides high-performance heat and moisture regulation
  • Set includes two standard 9" or low-profile 5.75" StabL-Base® box springs
  • Free White Glove Delivery+ includes set-up and mattress relocation or haul-away
Top Rated
Due to COVID-19, "White Glove" delivery is temporarily suspended until further notice. Delivery will be made to the door, but not inside the home. We apologize for any inconvenience this may cause.
Save $200.00 $2,399.00
current price: $2,199.00
Choose a boxspring type: 
Standard 9 height - out of stock
Low profile 5.75 height - out of stock
Free shipping


Transform your bedroom into an oasis of comfort with this iComfort Blue 300 plush pillowtop hybrid king mattress set. Layers of TempActiv gel memory foam & EverCool Fuze gel foam cradle your body while you sleep for enhanced comfort & pressure relief & help encourage airflow to dissipate heat. The TempActiv balance fabric cover ensures efficient heat-and-moisture regulation, helping you stay cool, dry & comfortable all night.

Featuring a Hybrid Coil system, this iComfort Blue 300 hybrid king mattress provides exceptional support & helps keep your body in a neutral position. The medium firmness level lets you sink into bed while keeping your spine aligned & supporting your hips & back.

This iComfort Blue Fusion 300 mattress set includes two 5.75-inch standard box springs or a 9-inch StabL-Base low-profile box spring. The two available sizes give you options for customizing your sleeping area, & the sturdy designs offer consistent support. Mount the mattress on a Serta adjustable foundation (not included) to enhance your sleeping area with both head & foot lift functionality for watching TV or reading comfortably in bed.


iComfort Hybrid CollectionThe Serta® iComfort® Hybrid is the only mattress that combines the cooling memory foams of the iComfort sleep system with the newest & most advanced coil support system. You get all the perks in one bed, cooling technology, deep down support & cradling comfort.


Compatible with Serta Adjustable FoundationsWhether you like to watch television, read or just relax in bed after a long day, Serta’s adjustable foundations (sold separately) customize your mattress. Choose from the Custom II Foundation that raises the head of the foundation up to 90 degrees for comfort & support, the Motion Essentials II Foundation that features Smooth Power™ Lifting System for head & foot lifting functionality, or the Motion Select Foundation that offers ultra-quiet massage, programmable head & foot positions, plus adjustable leg lift.


Receive Sam’s Club e-Gift Card(s)Enjoy a great value as well as a great night’s sleep. With your purchase of this iComfort® mattress or mattress set, you’ll receive Sam’s Club e-Gift Card(s) for use on future purchases at Sam’s Club & Gift card value varies by price point & size.


Delivery, Set-up and Mattress Haul-awaySerta’s White Glove Delivery+ Service* includes in-home delivery, up to two flights of stairs. The delivery agent will remove the mattress from packaging & set-up basic bed frames (if no tools are required). The Member may ask the delivery agent to move a used mattress to another room at the location or haul-away the old mattress from the premises. Estimated delivery time is 10-12 business days for standard zones; remote zones may take longer. The delivery agent will call the Member to set up an appointment.

Get Comfortable

This iComfort Blue Fusion 300 set provides plenty of room to sleep in comfort. The generous length & width easily accommodate two people & tall sleepers.

Complete your Sleeping Area

This iComfort Blue Fusion 300 plush pillowtop king mattress set includes your choice of two 5.75-inch or 9-inch box springs. Raise your mattress & make it easier for tall people to get in & out of bed with the 9-inch box spring, or give your sleeping area a low-profile look with the 5.75-inch box springs.

Hybrid Design

Featuring a hybrid pillowtop design, this iComfort Blue Fusion 300 king mattress provides an ideal combination of comfort & support. The memory foam provides plush cushioning, & the Hybrid Coil system supports your body.

What kind of mattress is this?

This iComfort Blue Fusion 300 mattress has a hybrid pillowtop design with both soft memory foam & a supportive coil system.


Mattress Buying GuideLooking for the perfect mattress for your needs? Click to view our Mattress Buying Guide.


Need Help? Ask our dedicated Sam’s Club members-only Serta hotline, staffed especially for you by Serta Mattress Specialists: 1-888-240-1945 available 24 hours/7 days a week.

Member reviews & questions


"Membership is required to complete an in-club or curbside pickup purchase at Sam's Club."