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SertaPedic XL Twin Foundation Extends the Life and Bounce of Your Mattress Firm up your sleep routine with the sturdy SertaPedic XL Twin Foundation . Designed to enhance the quality of your sleep and built to prolong the life of your mattress, the XL twin foundation turns your sleep zone into an island of steady rest and relaxation. The cornerstone of your bedroom, this sturdy foundation, once slipped under your king size or extra long twin mattress, gives unrivaled targeted support and premium comfort to your body while preventing your mattress from swaying and sagging. The innerspring network that makes up this XL box spring helps distribute weight evenly and isolate the movements of one sleeper so the other is not affected. Featuring a Double Beam foundation that provides a consistent support across the bottom of the mattress, this Serta StabL-Base box spring reinforces the comfort, longevity and bounce of your sleep set. Being extra long, a set of two twin foundations will perfectly complement your king size mattress or when used singly, will be the only sleep set you or a child will ever need through all the growing years. And with a 10 year backing, this SertaPedic King Foundation will keep you sleeping peacefully for years.
  • The SertaPedic XL Twin Foundation gives your sleeping set a firm and stable base for years
  • Foundation Height: 9 in.
  • Mattress Size: Twin Extra Long or King
  • Foundation size: Twin Extra Long; You must order one of these to complete a twin extra long set and TWO of these to complete a king set
  • Exclusive design dramatically reduces mattress sway
  • Double Beam Foundation provides consistent support across the bottom of the mattress and lasting durability to the Mattress sleep set
  • Provides the perfect height and support to rest upon easily
  • Network of innersprings helps isolate movement
  • Long lasting design makes it an investment for years
  • Warranty: 10 year prorated
  • Made in USA


Foundation Color Off White
Width (in.) 38.5
Foundation Length (in.) 79.5
Foundation Height (in.) 9
Size Twin XL
Product Overview:
Overall Dimensions L 79.5 in. x W 38.5 in. x H 9 in.
Foundation Type Box Spring
Package Quantity 1
Foundation Weight (lbs.) 55.49
Warranties & Coverage:
General Warranty 10 Year Non Prorated


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