Size Guide
Find your size in three numbers
Every cover is cut to the width, length and depth you give us, so those three numbers matter more than the name on the box.
1. Width × length
| Size | Width × Length (in) | Notes |
|---|---|---|
| Twin | 38 × 75 | |
| Twin XL | 38 × 80 | Common in dorms |
| Full | 54 × 75 | Also called Double |
| Full XL | 54 × 80 | Rare — measure first |
| Queen | 60 × 80 | Most common |
| Olympic Queen | 66 × 80 | Rare — measure first |
| King | 76 × 80 | Two Twin XL side by side |
| Cal King | 72 × 84 | Longer and narrower than King |
2. Depth (thickness)
We make covers for mattresses 8" to 14" deep, in one-inch steps. Measure at the corner, from the top surface straight down to the bottom edge — not the frame, not the box spring.
| Your mattress measures | Choose depth |
|---|---|
| 8"–9" | 8" or 9" |
| 10"–11" | 10" or 11" |
| 12"–14" | 12", 13" or 14" |
If your mattress has a pillow-top or built-in topper, measure with it on — the cover has to fit over everything.
3. When you are between sizes
Round up on depth, never down. A cover that is slightly deep sits flat; one that is too shallow will not close at the zipper.
If you get it wrong
You get one free remake within 14 nights of delivery — we cut the correct size and send it, with no return shipping and no fee. Email support@ivytress.com with your order number and the corrected three numbers.
Related: Shop · Size Guide · Blog · FAQ · Contact
Still have questions?
Real people answer our email, usually within one business day. Include your order number if it's about a delivery.