Twin XL Mattresses

A twin XL mattress has the width of a twin bed and the length of a queen. At 38 x 79 in., it lets tall people sleep alone without their feet hanging off the end.

At Avanti, every one of our models comes in twin XL size and in three firmness levels. They're handmade in our Saint-Narcisse factory in Quebec.

See the dimensions

Avanti twin XL mattress dimensions

Our twin XL mattresses measure 38 in. wide by 79 in. long, or about 97 x 201 cm.

  • Twin38 x 74 in.The twin XL is 5 in. longer, with the same width.
  • Twin XL38 x 79 in.About 97 x 201 cm
  • Queen59 x 79 in.Same length, but 21 in. wider.

Good to know: two twin XL mattresses placed side by side have the same dimensions as a king mattress (76 x 79 in.).

Who is a twin XL mattress for?

A twin XL is the right choice:

  • For a teen who is already over, or will soon be over, 6 feet tall.
  • For a tall adult who sleeps alone in a narrow bedroom.
  • For a student residence or a first apartment.
  • For a couple who wants two separate sleep surfaces, each with its own firmness, combined in a king frame.

Like the twin, it takes up little width: a small bedroom is enough, with about 60 cm of clearance around the bed. To compare all sizes, see our guide to choosing the right mattress size.

Two twin XLs for a custom king

You and your partner don't like the same firmness? By combining two twin XL mattresses, each of you picks your own model: soft on one side, firm on the other. This setup also works well with two adjustable beds, so each of you can set your own position. Ask your retailer to confirm that the bases are compatible.

Which model should you choose in twin XL size?

Tall people often put more pressure on a mattress. Choose support that doesn't give way:

Pocket springs with centre reinforcement

The REVE (800 springs) and LUX (up to 1,020 springs) collections support your back and hips, with a rigid 3 in. perimeter.

Eco-friendly latex

The LATEXTRA collection offers responsive, breathable support that spreads your weight across the entire surface.

Cooling memory foam

The COOLGEL collection relieves pressure points, with ergonomic zones on the Vita and the Coolgel1.

Delivered in a box

The MATT-2-GO collection is easy to carry to a residence room.

Not sure about firmness? A medium-firm mattress suits most adult sleepers.

Why choose an Avanti twin XL mattress

Handmade in Quebec since 1995, in our Saint-Narcisse factory.

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Certified foams CertiPUR-US® and OEKO-TEX® Standard 100.

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Designed for at least 10 years of normal use, with a warranty of up to 10 years depending on the model.

Warranty details

Less than 1% returns.

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Try it in store

Stretch out to your full length: it's the best way to make sure the length and firmness are right for you.

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Frequently asked questions

Another question? Our team is here to help at 1 800 315-4080.

What are the dimensions of a twin XL mattress?

Our twin XL mattresses measure 38 x 79 in., or about 97 x 201 cm.

What's the difference between a twin and a twin XL?

The width is the same (38 in.). The twin XL adds 5 in. of length, making it better suited to people close to 6 feet or taller.

Do two twin XLs make a king?

Yes. Side by side, two 38 x 79 in. twin XLs form a 76 x 79 in. surface, the same dimensions as our king mattress.

Do twin sheets fit a twin XL?

No: a twin fitted sheet will be 5 in. too short. Choose twin XL bedding instead.

How do you care for a twin XL mattress?

Rotate it once a month during the first year, then four times a year, and set it on a base with centre support.