Yorkman Extra Firm

Firm Soft
Floor Model Sale!

Yorkman Extra Firm

Firm Soft

Best for back sleepers, the Yorkman Extra Firm is one of the top three firmest beds that Ortho carries. Features include Serta’s Cool Action™ Gel Memory Foam and premium 886 Custom Support® Individually Wrapped Coils for a cool and supportive sleep.

Extra Firm
Extra Firm
Adjustable Compatible
Adjustable Compatible
Gel Memory Foam
Gel Memory Foam
Special Price $679.99 Regular Price $1,319.99
886 Custom Support®
886 Custom Support®

886 independent coils designed to support the curvatures in your body

Gel Memory Foam
Gel Memory Foam

Gel particles infused into foam to promote a more breathable mattress

National Sleep Foundation Certified
National Sleep Foundation Certified

Serta Perfect Sleeper is the official mattress of the NSFC

A smooth, supple, and breathbale cover enhances the feel of the mattress and provides an initial catalyst for air flow. Quilting Layer Breakdown: Cotton Blend Serta Support Foam
Featuring millions of cooling gel beads that gather where your body needs extra support, this gel-infused memory foam helps reduce heat at the sleep surface. Comfort Layer Breakdown: 1" Cool Action™ Gel Memory Foam 2" Serta® Support Foam
This advanced Best Edge foam encasement system provides superior edge support and helps prevent sagging and edge roll-off. This system has been tested beyond industry standards to ensure durability and long mattress life. Edge Width: 4"
A support system designed to help reduce motion transfer from one sleep partner to another, so you can stay asleep even when your partner moves. 886 Custom Support® Firm

Manufacturer Information

The Serta Tradition
For more than 80 years, Serta has been manufacturing mattresses to the highest quality and safety standards. Today, Serta is the #1 mattress manufacturer in America, as they continue to design beds that give their customers deep, restorative, and healthy sleep.

No Warranty - Floor Model
All Floor models are bought as is and warranties do not apply. Learn more about Mattress Warranties and Bedding-care practices.

CertiPUR Foam
All Serta Polyurethane Foams adhere to the highest standards for product quality and safety. All Serta foams have been certified by CurtiPUR-US. This means the beds are free of formaldehyde, flame-retardants, prohibited phthalates and heavy metals and also meet low-VOC standards for indoor air quality. Learn more about the eco-friendly certification process Serta foams go through.

Additional Comfort Types
Luxury Firm and Luxury Plush


More Information
Profile 13.5
Brand Serta
Type Innerspring
Comfort Level Extra Firm
Body Impression for Replacement 1.5"
Motion Transfer Low
Dimensions King- W: 76 L: 80
Cal King- W: 72 L: 84
Queen- W: 60 L: 80
Full- W: 53 L: 75
Twin XL- W: 38 L: 80
Twin- W: 38 L: 75
Split King- W: 38 L: 80
Warranty 10 year warranty
Manufacturing Location Moreno Valley, CA
Customize Your Mattress for a Better Night's Sleep

For the ultimate sleep system, pair your mattress with an adjustable base, frame, or mattress protector.

Sleep With Confidence

100 Night Comfort Guarantee

To ensure your comfort we offer a 100 night sleep guarantee. Sleep up to 100, but no less than 30 nights. If you feel the bed does not fit your comfort needs, you may select a mattress of equal or greater value with zero fees. You simply pay for the redelivery of the new mattress.

Full Details


If you live within Los Angeles County we offer free same day delivery for purchases +$499.99 (if the order is placed before 2 PM and the merchandise is in stock). For all other SoCal zip codes we offer free next day delivery on purchases +$499.99. If you live outside of our delivery bounds the delivery window is between 6-10 days.

Full Details

Frequently Asked Questions

Serta designs and builds all their mattresses in the USA. In fact, most if not all of the beds that Ortho offers from Serta are built in their Moreno Valley, CA, factory.
No. Number of coils is not always the best way to determine the support of a mattress. More important is the gauge (thickness) of the coil’s steel, as a stronger thicker steel coil can last longer and provide more support. Please note that steel gauge is an inverse scale: the lower the gauge, the thicker and stronger the steel.
Gel memory foam utilizes gel particles within the memory foam to help prevent heat retention in the mattress and to allow for a cooler sleep- Similar thought processes as gel inserts for shoes.

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