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100% Cotton 17" Deep Pocket Fitted Sheet

100% Cotton 17" Deep Pocket Fitted Sheet — Fits Thick Mattresses

Quick answer: This is a 100% cotton fitted sheet with a deep 17-inch pocket, built to fit thick, pillow-top, and contoured mattresses that standard sheets pop off of. Real single-ply 300 thread count, breathable, hypoallergenic, and available in six colours.

If your fitted sheet keeps slipping off the corners, the usual cause is a pocket that's too shallow for your mattress. The 17" deep pocket here grips taller mattresses (including those with a topper) and stays put.

WHO THIS IS FOR:

  • Anyone with a thick, pillow-top, or extra-deep mattress (up to ~17")
  • Anyone adding a mattress pad or topper who needs extra pocket depth
  • Hot and cold sleepers who want breathable natural cotton
  • Sensitive skin — cotton is naturally hypoallergenic

SPECIFICATIONS:

Detail Specification
Material 100% Cotton (single-ply)
Thread Count 300 TC
Pocket Depth 17 inches (43 cm)
Colours White, Ivory, Grey, Pale Blue, Light Grey, Khaki
Care Machine washable; softens with every wash
Origin Made in China

SIZES & DIMENSIONS (with 17" pocket):

Size Dimensions
Twin 38" × 75" + 17" (96.5 × 190.5 + 43 cm)
Double/Full 54" × 75" + 17" (137 × 190.5 + 43 cm)
Queen 60" × 80" + 17" (152.4 × 203.2 + 43 cm)
King 78" × 80" + 17" (198.1 × 203.2 + 43 cm)

FREQUENTLY ASKED QUESTIONS

Will this fit my deep mattress?
Yes — the pocket is 17 inches deep, which fits most thick, pillow-top, and contoured mattresses, including a mattress with a topper added. Measure your mattress height; if it's 17" or less, this fits.

Why does my old fitted sheet keep slipping off?
Almost always because its pocket is too shallow for your mattress height. A deep-pocket sheet like this grips taller mattresses and stays on the corners.

Is 300 thread count cotton good?
Yes. This is honest single-ply 300TC cotton — soft, breathable, and durable, and it softens further with each wash. It avoids the inflated thread-count claims common on lower-grade fibre.

Can I machine wash it?
Yes, it's fully machine washable and low-maintenance.

Do you have matching bedding?
Yes — matching colours are available in our cotton duvet covers and other sheet sets.

Complete the set: add a matching combed cotton duvet cover or browse Complete Your Bed.

WHY DOWN UNDER BEDDING?
Canada's trusted source for premium natural bedding for over 30 years. Free shipping across Canada.

Size: Twin
Color: Khaki

2 items left

Product Description
Reviews

Customer Reviews

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Michelle S
Finally, a Fitted Sheet for deep mattresses

Why do sheet sets always include that useless flat sheet? I only want the fitted one that actually stays put—especially on my mattress that’s got more curves than my dating past. This 100% cotton fitted sheet solves all the problems.
The deep 17-inch pocket actually fits my mattress without a wrestling match

Rebecca! Lots of people don't use the flat sheet or don't need extra pillowcases. These sheets are great if you have a very deep, thick mattress. Thank you for your support in helping small Canadian businesses.

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Michelle S
Perfect fit for my thick mattress!

I've been struggling to find fitted sheets that actually stay on my pillow-top mattress, but these are exactly what I needed. The 17" deep pocket fits perfectly and doesn't pop off the corners like my old sheets used to. The cotton feels really soft and breathable - I noticed I sleep cooler now. After a few washes they've held up well, no pilling or fading. Definitely worth the investment if you have a thick mattress!

Hi Sarah, we really appreciate your review. Remember, a lot of people prefer to use only the fitted bed sheets, so they don't need to complete the set. This is a great option. Don't forget bamboo is so much softer than a microfiber like polyester.