Shop Twin Extra Long Firm Mattresses

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For tall single sleepers seeking extra support while they sleep, a twin extra-long firm mattress, measuring 39" x 80", is the mattress of choice. With a twin extra-long firm mattress, you will not only rest easy with six more inches of legroom, but you'll also have plenty of support that will keep your body aligned throughout the night.

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  • $383.36 - $767.36 $599.00 - $1,199.0 (up to 36% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $239.20 - $399.20 $299.00 - $499.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • NEW AT MATTRESS FIRM

    $479.20 - $719.20 $599.00 - $899.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • WEB EXCLUSIVE

    $191.20 - $311.20 $239.00 - $389.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • WEB EXCLUSIVE

    $207.20 - $351.20 $259.00 - $439.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $460.00 - $760.00 $575.00 - $950.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH
  • $319.20 - $439.20 $399.00 - $549.0 (up to 20% off)
    EXTRA FIRM FIRM MEDIUM PLUSH ULTRA PLUSH