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Serta Castleview Cushion Firm Pillowtop King Mattress Set

by Serta |
Item # 121589
Model # 500300923-9960 |

Product Details

Why We Love This

Serta’s Castleview Limited Edition Euro Pillowtop mattress features Cool Twist® Gel Foam and an individually wrapped coil system for targeted support.

About this item

  • Firm pillowtop mattress cradles the body and relieves pressure points
  • Hybrid mattress combines memory foam with innerspring for support
  • Set includes two standard 9" StabL-Base® box springs
  • White Glove Delivery+ includes set-up and mattress haul-away
  • Tester beds are available at your local club*
August Savings Week

Special August Savings Week Pricing!
While supplies last.

$150 off with Instant Savings
Offer ends August 09
Save $150.00previous price $698.00
current price: $548.00
Online only
Choose a box spring type: 
Standard 9 Height
Low Profile 5.75 Height


Fall asleep easily and stay asleep all night with this Serta Perfect Sleeper Castleview firm pillowtop king mattress set. The integrated Custom Support system uses 953 individually wrapped coils to hold your body in a comfortable position while you sleep to help encourage proper sleep posture and keep your spine aligned, ideal for minimizing stiffness and relieving back pain. The coils help isolate motion so you can move around and get out of bed without disturbing your partner. A Total Edge Foam Encasement system uses a combination of extra foam support and a durable border rod to extend the sleeping area so you can sit on the edge of the mattress and sleep through the night without rolling off the sides.

The mattress in this Serta Perfect Sleeper Castleview mattress set has layers of soft memory foam that conform to your body and help relieve pressure points so you can sleep comfortably without tossing and turning. The Cool Twist gel memory foam encourages airflow and helps disperse heat to ensure a consistently comfortable sleep temperature. Boasting a medium-firm firmness level, the mattress cradles your body while comfortably supporting your back, hips and shoulders.

This Serta Perfect Sleeper Castleview king mattress set includes two 9-inch StabL-Base box springs. The box springs provide stable, impressively durable foundations for your bed and provide consistent support to ensure efficient weight distribution and prevent mattresses from sagging over time.

Serta Perfect Sleeper CollectionOfficial mattress of the National Sleep Foundation, the Serta Perfect Sleeper model addresses five common sleep problems. Comfort XD™ Foam provides pressure-point relief, which helps prevent tossing and turning. Serta’s Custom Support® innerspring offers a body-cradling feel and outstanding support while minimizing motion transfer. To ensure a comfortable sleep temperature, Cool Twist® Gel Foam reduces the build-up of heat at the surface. Total Edge® Foam Encasement helps reduce edge roll-off, extending the sleep surface.


Home Delivery, Set-up and Mattress Haul-away Serta’s Home White Glove Delivery+ service* includes in-home delivery, up to two flights of stairs. The delivery agent will remove the mattress from packaging and 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 to 12 business days for standard zones; remote zones may take longer. The delivery agent will call the Member to set up an appointment.

Snuggle Up or Stretch Out

The king-sized mattress in this Serta Perfect Sleeper Castleview pillowtop mattress set delivers massive room to stretch out and relax. Cuddle up with a partner or invite the kids for a family evening watching movies.

Your Perfect Sleeping Area

Two 9-inch StabL-Base box springs are included with this Serta Perfect Sleeper Castleview Euro pillowtop mattress set. Place the mattress on one or both of the included box springs to complete your bedroom.

Firm pillowtop

This Serta Perfect Sleeper Castleview pillowtop mattress set includes a Pillowtop mattress with a medium-firm comfort level. The cushioned surface and individually wrapped coils cradle your body and support your shoulders and hips while you sleep.

What are the measurements/assembled size?

The included mattress in this Serta Perfect Sleeper Castleview firm pillowtop king mattress set measures 13.5"H x 76"W x 79.5"L.

Does this mattress come with a box spring?

This Serta Perfect Sleeper Castleview king mattress set includes two 9-inch StabL-Base box springs.

What kind of mattress is this?

The included mattress in this Serta Perfect Sleeper Castleview mattress set is a king-sized pillowtop mattress.


Mattress Buying Guide Looking 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.

*‘Compare at’ price reflects verified online retail price of same or similar item.

Member reviews & questions


We endeavor to have every advertised item in stock and to provide accurate information. Item unavailability may occur due to unforeseen difficulties. Errors may occur and are subject to corrections. We reserve the right to limit quantities & exclude resellers. Pricing (including REG. pricing) & item availability may vary by location and in AK, HI, OK, PR, WI, and as Samsclub.com. No rain checks. While supplies last. Event Pricing is valid on August 1, 2020 starting at 7am in club and at 12:01 am (EST) at Samsclub.com. Sam's Club reserves the right to extend event pricing online and in club.

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