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Twin XL Mattresses
Sit 'n Sleep has a great selection of twin xl mattress sizes in Southern California. Click here to view XL twin mattresses by brand, comfort level, and price.
Online Only Sale

The DreamCloud Mattress
from $839.00
$419.00
Online Only Sale

Sealy HTL Ultra Firm
from $774.99
$474.99
Memorial Sale

Nectar Classic Memory Foam
from $699.00
$349.00
Online Only Sale

DreamCloud Premier2 Mattress
from $1,169.00
$649.00
Memorial Sale

Hybrid Infinity Cool Luxury
from $1,249.99
$1,099.99
Online Only Sale

Sealy HTL Soft Euro Pillow Top
from $899.99
$414.77
Online Only Sale

Apex Luxury Firm
from $469.99
$269.99
Memorial Sale

Hybrid Infinity Cool Essential
from $749.99
$649.99
Online Only Sale

Serta Grandmere Plush Pillow Top
from $1,119.99
$779.99
Free Gift With Purchase

Purple Mattress
from $999.00
$799.00
Online Only Sale

Nova Euro Top 9.5 Inch Foam
from $419.99
$219.99
Memorial Sale

Hybrid Infinity Cool Firm
from $899.99

Cottage Luxury Firm
from $329.99

Cottage Euro Top
from $339.99
Online Only Sale

Serta Blissful Excellence Borbela Harbor Medium Euro Top
from $519.00
$319.00
Online Only Sale

Kingsdown Glamorous Euro Pillow Top
from $1,049.99
$689.99
Online Only Sale

Purple Plus Mattress
from $1,499.00
$1,199.00
Online Only Sale

Nova 7 Inch Foam
from $399.99
$199.99
Memorial Sale

Hybrid Infinity Cool Standard
from $1,049.99
$899.99
Online Only Sale

Sealy Posturepedic Abbey Beach Firm
from $899.99
$599.99
Memorial Sale

Serta Perfect Sleeper Pacific Palisades Firm Pillow Top
from $2,199.99
$1,099.99
Online Only Sale

Beautyrest Beachfront Bay Medium Pillow Top
from $1,299.99
$621.77
Online Only Sale

Beautyrest Beachfront Bay Medium
from $899.99
$599.99
Online Only Sale

Orion Extra Firm
from $789.99
$389.99

Studio Euro Top
from $299.99
Online Only Sale

Serta Blissful Excellence Chandy Bay Firm
from $699.00
$399.00
Online Only Sale

Serta Perfect Sleeper Dazzling Night Hybrid Medium
from $1,599.99
$899.99
Online Only Sale

Sherwood Reagan Soft Euro Top
from $399.00
$199.00
Online Only Sale

Serta Blissful Excellence Alora Sky Plush
from $409.00
$209.00
Online Only Sale

Serta Blissful Excellence Enchanting Skies Extra Firm
from $799.00
$609.00
Online Only Sale

Beautyrest Beachfront Bay Firm
from $1,099.99
$699.99
Memorial Sale

Hybrid Infinity Cool Radiance
from $1,499.99
$1,299.99
Memorial Sale

Sealy Carano Bay Medium
from $1,549.99
$774.99
Online Only Sale

Serta Perfect Sleeper La Jolla Firm
from $899.99
$599.99
Online Only Sale

Apex Plush Euro Top
from $589.99
$289.99
Online Only Sale

Sealy Posturepedic Abbey Beach Medium Euro Pillow Top
from $1,374.99
$874.99
Memorial Sale

Cool Encore Firm Mattress
from $849.99
$649.99
Online Only Sale

Sealy Posturepedic Abbey Beach Medium
from $899.99
$599.99
Online Only Sale

Serta Perfect Sleeper Dazzling Night Hybrid Firm
from $1,599.99
$899.99

Cloudtech Stratus Medium Euro Top
from $1,299.99
Close Out Model

TEMPUR - Adapt Medium Mattress
from $1,699.00
$1,189.30
Online Only Sale

Kingsdown Beauty Firm
from $999.99
$649.99
Memorial Sale

Sealy Carano Bay Soft Euro Pillow Top
from $1,749.99
$874.99
Online Only Sale

Apollo Plush Euro Top
from $619.99
$319.99
Online Only Sale

Apollo Luxury Firm
from $609.99
$309.99
Memorial Sale

Serta Perfect Sleeper Pacific Palisades Extra Firm
from $1,999.99
$999.99
Online Only Sale

Serta Blissful Excellence Chandy Bay Plush Euro Top
from $699.00
$357.77
Online Only Sale

Sealy Posturepedic Hybrid Patterson Medium
from $1,224.99
$824.99
Memorial Sale

Cool Encore Luxury Mattress
from $1,299.99
$999.99
Online Only Sale

Sealy Posturepedic Hybrid Lacey Firm
from $1,224.99
$824.99
Online Only Sale

Beautyrest Cypress Bay Extra Firm
from $1,499.99
$899.99

Serta Perfect Sleeper Pacific Palisades Medium Pillow Top
from $1,099.99
Online Only Sale

Orion Luxury Firm
from $789.99
$389.99
Memorial Sale

King Koil Riptide Plush Euro Top
from $2,349.99
$1,049.99
Close Out Model

TEMPUR - ProAdapt Firm Mattress
from $2,899.00
$2,029.30
Online Only Sale

Kingsdown Nuovo Firm Euro Top
from $799.99
$499.99

Serta Perfect Sleeper Morro Bay Firm
from $699.99

King Koil Duet Ultra Firm
from $1,099.99

King Koil Premiere Luxury Firm Box Pillow Top
from $1,799.99
Close Out Model

TEMPUR - Adapt Medium Hybrid Mattress
from $1,999.00
$1,399.30

King Koil Keystone Firm Euro Top
from $1,299.99

King Koil Premiere Plush Box Pillow Top
from $1,899.99
Memorial Sale

Nectar Hybrid Premier
from $1,349.00
$799.00
Memorial Sale

Casper The One
from $749.00
$599.00
Memorial Sale

Casper Dream Hybrid
from $1,495.00
$1,045.00
Online Only Sale

Sherwood Aubrey Medium
from $499.00
$299.00
Online Only Sale

Sealy Posturepedic Abbey Beach Firm Fx Euro Top
from $1,174.99
$774.99
Online Only Sale

Apex Firm
from $469.99
$269.99
Online Only Sale

Serta Blissful Excellence Delani Meadows Firm Pillow Top
from $849.00
$549.00
Online Only Sale

Sealy Posturepedic Abbey Beach Soft Euro Pillow Top
from $1,374.99
$874.99
Memorial Sale

Stearns & Foster Estate – Firm Tight Top
from $2,299.00
$2,099.00
Memorial Sale

Stearns & Foster Estate – Firm Euro Pillow Top
from $2,499.00
$2,299.00
Online Only Sale

Sealy Posturepedic Abbey Beach Medium Fx Euro Top
from $1,174.99
$774.99
Online Only Sale

Beautyrest Beachfront Bay Plush
from $1,099.99
$699.99

Serta Perfect Sleeper Morro Bay Medium
from $799.99
Online Only Sale

Apollo Plush
from $609.99
$309.99

Cloudtech Stratus Firm
from $1,099.99
On Sale

Craftsman Medium Euro Top
from $1,049.99
$549.99
Online Only Sale

Sealy Dream Waves Firm Tight Top
from $584.00
$409.00
Memorial Sale

Nectar Foam Luxe 5.1
from $1,499.00
$999.00
Online Only Sale

Sherwood Buckaroo Medium Euro Top
from $599.00
$399.00
Online Only Sale

Sealy Golden Elegance Fortuna Firm
from $599.99
$399.99
Online Only Sale

Beautyrest Driftwood Bay Hybrid Firm
from $1,499.99
$899.99
Online Only Sale

Serta Perfect Sleeper Pacific Palisades Plush
from $2,099.99
$999.99

Serta Perfect Sleeper Morro Bay Plush Pillow Top
from $899.99
Free Gift With Purchase

Purple RestorePlus Soft
from $2,549.00
$2,249.00
Memorial Sale

Stearns & Foster Lux Estate – Ultra Firm Tight Top
from $2,899.00
$2,499.00
Memorial Sale

Beautyrest Black Series One Extra Firm
from $1,549.99
$1,249.99
Memorial Sale

Avocado Green Mattress
from $1,499.00
$1,274.00
Online Only Sale

Sealy Posturepedic Hybrid Lacey Soft
from $1,224.99
$668.77
$300 Instant Gift

Tempur-LuxeBreeze Soft 2.0
from $5,099.00
$4,799.00
Free Gift With Purchase

Purple RestorePlus Firm
from $2,549.00
$2,249.00
Memorial Sale

Cool Encore Standard Mattress
from $1,049.99
$899.99
Close Out Model

TEMPUR - ProAdapt Medium Mattress
from $2,899.00
$2,029.30
Memorial Sale

Casper Snow Hybrid
from $1,895.00
$1,325.00
$300 Instant Gift

TEMPUR-ProAdapt Firm 2.0
from $2,899.00
$2,699.00
$300 Instant Gift

TEMPUR-Adapt Medium 2.0
from $1,699.00
$1,499.00
Online Only Sale

Sealy Golden Elegance Fortuna Soft
from $659.99
$459.99
Online Only Sale

Kingsdown Nuovo Plush Euro Top
from $799.99
$499.99
Online Only Sale

Kingsdown Mode Plush Euro Top
from $1,129.99
$729.99