by Our Pick
Saatva Percale Sheets. From $145
365-night trial · Lifetime warranty
We earn a commission if you make a purchase through our links, at no extra cost to you.
Extra deep pocket sheets have fitted-sheet pockets of 15-22 inches (compared to 10-12" for standard sheets). They are designed for thick mattresses, pillow-tops, or mattresses with a topper on top. Undersized sheets pull loose overnight — the right pocket depth prevents that.
Pocket Depth Reference
| Pocket depth | Mattress thickness | Type |
|---|---|---|
| 6-9" | 6-9" | Slim |
| 10-12" | 10-12" | Standard |
| 13-15" | 13-15" | Deep pocket |
| 16-18" | 16-18" | Extra deep pocket |
| 19-22" | 19-22" | Mega deep (rare) |
Who Needs Extra Deep Pocket Sheets
- Pillow-top mattress owners: Base + pillow-top often exceed 13".
- Hybrid mattress owners: 12-15" is typical.
- Mattress + topper setups: Toppers add 2-4".
- Mattress + mattress protector: Protectors add ~1".
- Luxury mattresses: Often 14-17" tall.
How to Measure Your Mattress Depth
- Strip the bed completely.
- Measure from the top surface of the mattress (including any permanent top layer) to the bottom.
- Add 2" of buffer for shrinkage after washing.
- Include any mattress protector or topper in the measurement.
Features to Look For
- All-around elastic: Better fit than corner-only elastic.
- Stretch fabric: Percale with 300+ thread count provides elasticity.
- Certified cotton: OEKO-TEX or GOTS for chemical-free contact.
- Clear size labeling: Labels should specify pocket depth explicitly.
Signs Your Sheets Are Too Small
- Corners pop off during the night
- Sheet bunches in the middle
- Elastic visibly stretched to breaking
- Shallow mattress corners visible
Our Pick: Saatva Percale Sheets
Available in extra deep pocket (15"+) option to fit Saatva mattresses and competing premium hybrids. 300 TC percale cotton. Crisp, cool, durable.
Our Pick
Saatva Percale Sheets. From $145
365-night trial · Lifetime warranty
FAQ
How deep is an extra deep pocket sheet?
16-18 inches typically. Some brands offer 19-22" for very thick mattresses.
What size sheets for a 14 inch mattress?
Deep pocket (13-15") works. If you use a topper, move up to extra deep (16-18").
Can regular sheets fit a deep mattress?
Poorly. Corners will pop off. The shallow elastic does not hold.
Related reading: Top Sheet Guide | Best Pillowcases | Queen Blanket Dimensions | Saatva Mattress Review
Sheet buying guide 2026
Thread count myths
Above 400 thread count, quality is determined by fiber, not thread count. Marketing claims of 1000+ thread count sheets typically use multi-ply yarns that inflate the number without adding real density or softness.
Fiber options
- Cotton percale — crisp, cool, breathable. Best for hot sleepers. 200-400 thread count optimal.
- Cotton sateen — silky, slightly warmer than percale. 300-500 thread count optimal.
- Egyptian / Pima cotton — long-staple cotton, softer and more durable. Premium pricing.
- Tencel / Lyocell — wood-pulp fiber, naturally cooling and moisture-wicking. Best for hot sleepers and sensitive skin.
- Bamboo — soft, naturally antimicrobial. Most "bamboo" sheets are actually rayon made from bamboo.
- Linen — cool, breathable, wrinkles by design. Ideal for summer; improves with age.
Sheet size compatibility
- Standard queen sheets fit mattresses up to 15 inches deep.
- Deep pocket queen sheets fit 16-18 inch mattresses.
- Extra deep pocket needed for pillow-top mattresses over 18 inches thick.