FORM TENCEL™ Sheets
- 100% TENCEL™ Lyocell
- Fits Up to 18" Deep
- 3-Year Limited Warranty
- Free Shipping
FORM TENCEL™ Sheets are a 100% lyocell, 300-thread-count set that feels smooth and dry, with 18-inch pockets that fit every FORM mattress.
- 100% TENCEL™ Lyocell
- Fits Up to 18" Deep
- 3-Year Limited Warranty
- Free Shipping
FORM TENCEL™ Sheets are a 100% lyocell, 300-thread-count set that feels smooth and dry, with 18-inch pockets that fit every FORM mattress.
Free shipping · 3-year warranty



Smooth, Dry, Made to Fit.
Moisture-Managing Fiber
Lyocell fibers absorb moisture and release it into the air, which helps the fabric feel dry against your skin.
Grip-Edge Fitted Sheet
An elastic, rubber-grip edge helps the fitted sheet hold the corners of mattresses up to 18 inches deep.
Smooth, Wrinkle-Resistant
A smooth 300-thread-count weave that resists wrinkling, so the bed looks made with less effort.
Why Lyocell Belongs on a FORM Bed

The Layer You Actually Touch
Every FORM mattress starts with GelGrid™, an open-cell grid designed to let air move. Your sheets sit on top of it and against your skin, so we chose a smooth, 300-thread-count lyocell weave instead of a heavy, high-thread-count cotton.

A Fiber Made From Wood Pulp
Lyocell is made from wood pulp that is dissolved and spun into fiber. It absorbs moisture and releases it into the air, which helps the fabric feel dry rather than clammy on warm nights.

Deep Pockets That Stay On
Every fitted sheet has 18-inch pockets and a rubber-grip edge. That covers every FORM mattress, from the 10-inch FORM Core to the 15-inch FORM Prime X, with room for a mattress protector underneath.
Inside the Set
What you get, and how to care for it.

- What it does
- Every piece is made from 100% TENCEL™ Lyocell fiber at 300 thread count.
- Why it matters
- A smooth, dry-feeling surface on top of your mattress.

- What it does
- 18-inch pockets with an elastic, rubber-grip edge.
- Why it matters
- Corners stay put on thick hybrids and Euro-tops, so you re-tuck less.

- What it does
- Machine wash cold on gentle with mild detergent. Tumble dry low and remove promptly. Skip bleach and fabric softener.
- Why it matters
- Cool water and low heat protect lyocell fibers and help limit shrinking and pilling.

- What it does
- Two neutral colors: White and Gray.
- Why it matters
- Both match any FORM mattress and most bedroom palettes.
TENCEL™ Sheets at a Glance
The specs that matter, in one place.
- Fiber
- 100% TENCEL™ Lyocell
- Thread count
- 300
- Pocket depth
- 18 inches; fits mattresses up to 18" deep
- Fitted sheet
- Elastic edge with rubber grip
- Colors
- White, Gray
- Sizes
- Twin XL, Full, Queen, King, California King, Split King
- In the set
- Flat sheet, fitted sheet, 2 pillowcases. Twin XL: 1 pillowcase. Split King: 2 Twin XL fitted sheets, 1 flat sheet, 2 pillowcases.
- Care
- Machine wash cold, gentle; tumble dry low
- Warranty
- 3-year limited (manufacturing defects)
- Returns
- Final sale
- Origin
- Imported
Finish the Bed
Sheets go on last. Here’s what goes underneath.
- Learn more about FORM Mattress ProtectorProtect

FORM Mattress Protector
From$89 - Learn more about FORM CryoPhase PillowPillow

FORM CryoPhase Pillow
From$129 - Learn more about FORM Adjustable Bed BasePosition

FORM Adjustable Bed Base
From$1,399.30 - Learn more about FORM Upholstered FoundationSupport

FORM Upholstered Foundation
From$300
Product Details
Fits: 38" × 80" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 1 flat sheet, 1 fitted sheet, 1 pillowcase
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
Fits: 54" × 75" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 1 flat sheet, 1 fitted sheet, 2 pillowcases
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
Fits: 60" × 80" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 1 flat sheet, 1 fitted sheet, 2 pillowcases
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
Fits: 76" × 80" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 1 flat sheet, 1 fitted sheet, 2 pillowcases
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
Fits: 72" × 84" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 1 flat sheet, 1 fitted sheet, 2 pillowcases
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
Fits: two 38" × 80" mattresses up to 18" deep
Fiber: 100% TENCEL™ Lyocell
Thread count: 300
In the set: 2 Twin XL fitted sheets, 1 flat sheet, 2 pillowcases.
Care: machine wash cold, gentle; tumble dry low
Warranty: 3-year limited
Returns: final sale
Origin: Imported
TENCEL™ Sheets FAQs
Lyocell is a common choice for warm sleepers because the fiber absorbs moisture and releases it into the air, so FORM TENCEL™ Sheets feel dry rather than clammy. Sheets can’t lower your body temperature on their own, so pair them with a breathable mattress and pillow.
Both come from plants. Cotton is a natural seed fiber; lyocell is made from wood pulp that is dissolved and spun into fiber. Lyocell has a smooth, silky hand and handles moisture well, while cotton percale feels crisp and matte. Choose by the feel you prefer.
Full, Queen, King and California King sets include 1 flat sheet, 1 fitted sheet and 2 pillowcases. Twin XL includes 1 flat sheet, 1 fitted sheet and 1 pillowcase. Split King includes 2 Twin XL fitted sheets, 1 flat sheet, 2 pillowcases.
The fitted sheet has 18-inch pockets with a rubber-grip edge. That fits every FORM mattress, 10 to 15 inches tall, with a protector underneath, and most other mattresses up to 18 inches deep.
Only if you have two Twin XL mattresses on a split king base. The Split King set has two separate Twin XL fitted sheets, so each side can move on its own. If one King mattress sits on your base, use the King set.
Machine wash cold on a gentle cycle with a mild detergent, then tumble dry low and remove the sheets promptly. Skip bleach and fabric softener. Cool water and low heat help limit shrinking and pilling.
Washing cold and drying low keeps pilling and shrinkage to a minimum. The 3-year limited warranty covers manufacturing defects such as faulty seams or flawed stitching. Normal wear, fading, pilling and shrinkage aren’t defects.
White and Gray, in every size.
FORM TENCEL™ Sheets are final sale once delivered, like all FORM bedding. If they arrive damaged or defective, contact us and we’ll make it right under the 3-year limited warranty.
Product Highlights
- Free Shipping
- 3-Year Limited Warranty
- 18-Inch Pockets
- 100% TENCEL™ Lyocell
The Layer You Touch.
100% TENCEL™ Lyocell, 300 thread count, 18-inch pockets.
18-Inch Pockets
Fits every FORM height
Free Shipping
5–10 business days
3-Year Warranty
Seams and stitching
