Extra Deep King Sheet Set - Fits 24" Mattresses

Extra Deep King Sheet Set - Fits 24" Mattresses

amazon.com
4.3 (27.9K reviews)
In Stock
$42.42
Updated: August 3, 2026
Price as of Aug 3, 2026. We earn from qualifying purchases.

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Putting fresh sheets on a king mattress with a thick pillow top or 4-inch topper usually means wrestling with a fitted sheet that slips right off by morning, especially when kids climb in and out. These extra deep pocket sheets stretch to grip 18- to 24-inch depths securely with their elastic edging, so they hold tight through the night on family beds. After a few days, you notice less time remaking the bed each morning, and the microfiber’s light, soft feel settles in nicely-though it takes a quick tug to get that snug fit just right at first.

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Who Is This Product For?

Parents with school-age kids or teens who wrestle with sheets slipping off thick family mattresses during nightly tuck-ins. Couples adding 3- or 4-inch toppers to their king bed for extra comfort, only to deal with fitted sheets that pop loose when someone rolls over. Busy suburban households in warmer states like Texas or Florida, where breathable bedding helps on humid nights, and mornings start with quick bed-making before school runs. Nurses or teachers coming home exhausted, needing something that stays put without daily adjustments, especially on pillow-top setups or mattresses up to 24 inches deep.

Key Features & Benefits

Extra Deep Pockets with Stretch Elastic

The fitted sheet measures 78 by 80 inches with 21-inch pockets that stretch to fit 18- to 24-inch deep mattresses. Elastic runs all around for a tug-tight grip. This keeps the sheet in place during active sleep or when kids climb in and out, avoiding the hassle of remaking the bed every morning on tall setups like pillow-top kings with foam toppers.

6-Piece Set with Four Oversized Pillowcases

Includes a flat sheet (111 by 102 inches), fitted sheet, and four pillowcases (20 by 40 inches each) with secure enclosure designs. The extra pillowcases handle double枕 setups common in family beds, while the enclosures prevent slipping during the night. Useful for shared kid rooms or guest beds where multiple heads need coverage without bunching.

Microfiber Fabric for Softness and Breathability

Made from microfiber with a light, non-crisp feel that’s softer than many cotton sheets. It allows air flow to stay comfortable on warmer nights. Over time, the fabric softens further with washes, making it a go-to for everyday use in homes where sheets see frequent laundering from spills or pet hair.

Wrinkle-Free and Secure Fit Design

The material resists wrinkles straight from the dryer, and the overall fit ensures nothing shifts on extra-thick mattresses. This cuts down on smoothing time before bedtime, especially helpful in routines with young kids or after long workdays when energy is low.

Suitable for Various Mattress Add-Ons

Designed to accommodate pillow tops, memory foam toppers, or large pads up to 4 inches thick. It stretches over these layers without riding up, which matters most right after upgrading a bed or during back-to-school mattress refreshes when standard sheets fail.

What to Consider When Buying

Think about your mattress depth first-measure from the base to the top including any topper to confirm it falls between 18 and 24 inches. Check if you need four pillowcases for your setup, as this set provides extras that might go unused in single-pillow homes. Durability holds up through regular washes, but expect the elastic to loosen slightly after a couple years of heavy kid use.

  • Common mistake: Assuming standard deep-pocket sheets (15 inches) will work on 20+ inch mattresses-they won’t, leading to constant slippage.
  • Overlooking pillowcase size: These are oversized at 20×40 inches, which can feel baggy on standard pillows.
  • Ignoring fabric preference: Microfiber has a smoother drape than cotton but picks up lint more readily if you have pets.

How to Choose the Right One

Start by measuring your mattress height with all layers on. If it’s 18-24 inches, this fits; otherwise, look elsewhere. Next, count your pillows-four cases suit family beds, but fewer might mean extras stored away. Feel a microfiber sample if possible, or read reviews on softness versus crispness. Finally, scan for elastic details and stretch range to match your topper thickness. Mental checklist: depth match? Pillow count? Fabric trial? Elastic confirmed?

Why This Is a Smart Choice

It addresses the frustration of sheets coming loose on thick mattresses, providing a reliable fit that reduces daily adjustments. Breathability helps in everyday US climates, and the wrinkle-free nature simplifies mornings. Users with toppers notice less bunching after the first few nights, and the set covers family needs without buying extras. A subtle trade-off is the light fabric feel, which some adjust to over a week, but the secure hold pays off long-term for busy routines.

Care & Maintenance Tips

Wash in cold water on a gentle cycle to keep the microfiber soft and elastic intact-hot water can cause minor shrinkage over time.

  • Dry on low heat or air dry to avoid wrinkles; it comes out smooth without ironing.
  • Avoid bleach, which dulls the grey color after repeated uses.
  • After 10-15 washes, the sheets feel even softer but shake off lint outdoors for best results with pets around.
  • Store flat in a dry spot; folding loosely prevents deep creases when pulling them out next.
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    FAQs

    Q: Will these sheets stay put on my king mattress with a 4-inch pillow top and extra topper?

    A: The fitted sheet has 21-inch pockets with stretchable elastic that fits mattresses 18 to 24 inches deep, including setups with 3- or 4-inch toppers or pillow tops. They tug securely around the edges, which helps during restless nights or when kids climb in and out of family beds. Users with thick mattresses report they hold up through the night without slipping off.

    Q: How do these microfiber sheets feel compared to my old cotton ones?

    A: These have a super soft, light microfiber feel that’s not crisp like cotton-many find them even softer right out of the package. Over a few washes, they settle in nicely without getting stiff. The breathable fabric works well for warmer nights, though it might feel a touch less “airy” than heavier cottons in very dry climates.

    Q: What sizes are included in this 6-piece king set?

    A: You get a flat sheet that’s 111 inches wide by 102 inches long, a fitted sheet 78 by 80 inches with 21-inch stretch pockets, and four oversized pillowcases at 20 by 40 inches each. The pillowcases have secure enclosure designs to keep pillows in place. This setup covers standard king pillows generously, even for bulkier ones.

    Q: Can I use these on my kid’s extra tall mattress without constant readjusting?

    A: Yes, the extra deep pockets and elastic make them suitable for tall mattresses in kids’ rooms, staying secure even with daily jumping on and off the bed. Parents note less hassle during bedtime routines since they don’t pop off easily. Just note the light fabric might show minor wrinkles if left bunched up during the day.

    Q: How should I wash these to keep them in good shape?

    A: Machine wash them in cold water and tumble dry on low to maintain softness and wrinkle resistance. They handle regular laundry well without shrinking or fading much after repeated cycles. Avoid fabric softeners, as they can build up and dull the microfiber over time.

    Q: Do the pillowcases fit standard king pillows securely?

    A: The four 20 by 40-inch pillowcases are oversized with enclosure designs that grip pillows tightly, preventing them from slipping out overnight. This is handy for active sleepers or shared family beds. They accommodate most standard king sizes without being too loose.

    Q: What’s the real-world fit like on a 22-inch deep memory foam mattress?

    A: The elastic stretches to hug 22-inch depths snugly, working on memory foam or pillow-top kings without riding up. In daily use, this means smoother mornings without re-tucking, especially in busy households. Expect a slight learning curve the first time pulling them taut around very thick edges.

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