Serta® Effortless IV Hybrid Medium Twin XL Mattress

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Serta® Effortless IV Hybrid Medium Twin XL Mattress 0
Serta® Effortless IV Hybrid Medium Twin XL Mattress 1
Serta® Effortless IV Hybrid Medium Twin XL Mattress 2
Serta® Effortless IV Hybrid Medium Twin XL Mattress 3

Serta® Effortless IV Hybrid Medium Twin XL Mattress

Model #: 850004076-1020
Serta Canada
Product Code:
At a Glance
For a unique combination of cooling comfort and support, look no further. The iSeries collection features an all-new CoolTemp™ top fabric to ensure you don’t overheat while you sleep. With 1215 individually wrapped coils for luxurious support that will last, rest assured you will be rejuvenated each morning. Serta. Always comfortable.
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CoolTemp™ Cover

Top surface of the mattress is treated with a phase change material for a cool-to-the-touch sensation, helping you stay cooler and fall asleep faster.

Comfort Luxe™ Gel Fibre

Our plush Comfort Luxe™ gel fibre provides enhanced cushioning while wicking away moisture that can cause uncomfortable heat build up.

CoolTwist® Gel Memory Foam

This liquid gel-enhanced memory foam significantly increases airflow which helps move heat away from your body. It gently conforms to the body to provide cushioning and reduce pressure points.

GelPLUS Foam

This foam provides that “just right” combinations of comfort, temperature control and enhanced support.

1300 TruResponse Support Coil System

Thousands of TruResponse coils conform individually to support and cradle the various curves of the body.

CopperLite™ Latex Foam

CopperLite™ latex improves the products conductivity and support while creating a cooler sleep environment.

1215 Individually Wrapped Coils with Total Edge® Foam Encasement Featuring Lumbar Support Core

Serta’s latest innovation provides more support to an individually wrapped coil system that reacts to every contour of your body.

GelPLUS Comfort Foam

This gel-infused foam helps reduce added heat build-up while helping creating that feel of pure comfort for the sleeper.


  • New CoolTemp™ cover
  • Comfort Luxe™ gel fibre
  • 1/2” GelPLUS foam
  • 1” Serta® PillowSoft® foam

Top Upholstery

  • 1/2” CopperLite™ latex foam
  • 1/2” CoolTwist® gel memory foam
  • 1/2” Serta® PillowSoft® foam
  • 1300 TruResponse support coil system
  • New 2” GelPLUS comfort foam
  • 2” Serta® support foam

Support System

  • 8” - 1215 Individually wrapped coil
  • Total Edge® foam encasement
  • Lumbar support core

*Mattress only. All other items are not included. Images are for visual reference only and may vary from the actual sample. Colour and saturation may vary due to lighting and monitor/phone screen settings.


Misc. Specs

Made InCanada
Mattress SizeTwin XL
Width (in.)38
Length (in.)80
ColorDark Blue/Off-White
Manufacturer Warranty10 Year
Double Sided MattressNo
Age GroupAdult
Mattress Comfort LevelMedium
Width (cm)96.52
Length (cm)203.2
Mattress TopEuro Top
Mattress ConstructionHybrid