Skip to Main Content
Mattresses keyboard_arrow_right Mattresses keyboard_arrow_right Beautyrest Seaside Luxury Firm Twin XL 12" Lux Firm Pocketed Coil Mattress
Dimensions - Mattress


Height (bottom to top): 12" H
See Construction and Specifications


Can be used with an adjustable base.
The Seaside Luxury Firm Twin Extra Long 12" Luxury Firm Pocketed Coil Mattress, made by Beautyrest, is brought to you by Ultimate Mattress. Ultimate Mattress is a local furniture store, serving the Anchorage, Eagle River, Mat-Su Valley AK area. Product availability may vary. Contact us for the most current availability on this product.
  • Cushion Firm
  • Tight Top
  • No Flip


AirCool® Gel Memory Foam
AirCool® Gel Memory Foam helps provide great pressure relief while promoting freedom of movement and a comfortable sleeping temperature.
AirFeel™ Foam
AirFeel™ Foam is a soft, open cell foam that delivers high airflow to help keep you comfortable during sleep.
AirCool® Foam
AirCool® Foam features a channeled surface design that promotes airflow through the mattress.
DualCool™ Technology Fiber
DualCool™ Technology Fiber is enhanced with silver and is designed to help move both heat and moisture away from the surface of the mattress to maintain an ideal sleeping temperature.
Beautyrest® Pocketed Coil® Technology with Ventilated AirCool® BeautyEdge®
Beautyrest® Pocketed Coil® Technology with Ventilated AirCool® BeautyEdge® helps deliver conforming back support while also promoting airflow, leaving you feeling cool and comfortable.


Construction & Materials
Comfort Layers 1 1/4" AirFeel® Foam; 1" AirCool® Foam; Contour Layer; 1" Comfort Foam; AirCool® Gel Memory Foam Center Third Support; Support Layer
Origin Made In the USA
Warranty 10 Year Limited Warranty
Edge Support Ventilated AirCool® BeautyEdge®
Top Description Comfort Layer; DualCool™ Technology Fiber
Coils and Support 815 (Queen Coil Density) Firm Beautyrest® Pocketed Coil® Technology; 1" Energy Foam
Mattress/Bed Size Twin Extra Long
Features & Function
Coil Count Queen 815 Coil Density
Comfort Level Cushion Firm
Features No Flip
Item & Dimensions
Manufacturer Beautyrest
Style Elements
Mattress Top Style Tight Top
Height (bottom to top) 12" H
How to Shop For a Mattress
Sleep Health and Habits Guide
Sleep Health and Habits Guide
Adjustable Base Buying Guide
Reference #: 700600242-1020
Item Added to your Cart!
Twin XL 12" Lux Firm Pocketed Coil Mattress
Twin XL 12" Lux Firm Pocketed Coil Mattress Seaside Luxury Firm
You Might Also Need