---
product_id: 458437805
title: "Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16\" Deep Mattress 78\"X80\"+ 34\", Light Grey"
brand: "cottingon"
price: "$4793"
currency: MXN
in_stock: true
reviews_count: 8
url: https://www.desertcart.mx/products/458437805-cottingon-4-piece-flex-head-king-sheet-set-top-34
store_origin: MX
region: Mexico
---

# 360° Full Elastic Fit 100% Egyptian Cotton 400 TC Sateen Weave Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light Grey

**Brand:** cottingon
**Price:** $4793
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game with sheets that flex as you do!

## Quick Answers

- **What is this?** Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light Grey by cottingon
- **How much does it cost?** $4793 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/458437805-cottingon-4-piece-flex-head-king-sheet-set-top-34)

## Best For

- cottingon enthusiasts

## Why This Product

- Trusted cottingon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium 400 Thread Count:** Sumptuous sateen weave for silky softness and durability.
- • **Secure 360° Elastic Fit:** Fits mattresses up to 16 inches deep without slipping or bunching.
- • **OEKO-TEX Certified Safety:** Sleep soundly on toxin-free, eco-friendly luxury fabric.
- • **Tailored for Adjustable Beds:** Split-top design moves independently for zero sleep disruption.
- • **Breathable & Moisture-Wicking:** Stay cool and fresh all night, no matter the season.

## Overview

The Cottingon 4 Piece Flex Head King Sheet Set is expertly crafted from 100% OEKO-TEX certified Egyptian cotton with a 400 thread count sateen weave, offering breathable, silky softness. Designed specifically for adjustable and split king mattresses up to 16 inches deep, its innovative split-top fitted sheet with full 360° elastic ensures a snug, secure fit that moves independently with your bed. Ideal for year-round comfort, these fade-resistant, moisture-wicking sheets combine luxury with practical durability, making them a perfect upgrade for modern sleepers.

## Description

Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light GreyOEKO-TEX MADE IN GREENOEKO-TEX MADE IN GREENOEKO-TEX MADE IN GREEN

## Features

- Experience the Ultimate Comfort with OEKO-TEX Certified 100% Extra Long Staple Cotton Fabric Indulge in the luxurious softness, exceptional comfort, and breathability you deserve. Our Premium fabric ensures a restful night's sleep, so you wake up feeling refreshed and energized every morning.
- Top Split King 4 Piece Sheet Set Includes 2 Pillowcases 20" x 40", 1 Flat Sheet 102" x 108" and 1 Half Split 34" Down or Flex Head Fitted Sheet 78" x 80", with full 360 elastic to fit Upto 16 Inch Adjustable Split King Bed Mattress Keeping it Snug without Shifting.
- Designed for Adjustable Beds : Expertly tailored to fit adjustable mattresses, For Sleep Number Beds, Flex Top King, Split King, and Split Head beds. The innovative split-top design allows each side to move independently without disrupting your sleep, while strong and Extra Wide elastic keep your sheets securely in place all night.
- This bedding set makes the ultimate gift for men and women, moms and dads ideal for Valentine's Day, Mother's Day, Father's Day, and Christmas. Perfect for any room in your home master bedroom, guest room, kids' room, or vacation retreat.
- Washcare Instructions: Machine Wash our 100% Egyptian Cotton sheets in Cold/Luke Warm Water and tumble dry on low, do not bleach, do not dry at high temperatures.Iron if needed. Cotton tends to soften up with washing, so allow the sheets a couple washes to experience their silky softness.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Care Instructions | Machine Wash, do_not_bleach |
| Weave Type | Sateen |
| Thread Count | 400 |
| Material Type | Cotton |
| Unit Count | 4.0 Count |
| Fitted Sheet Pocket Depth | 16 Inches |
| Item Dimensions | 11 x 9 x 2.5 inches |
| Size | Top Split King :78"x80"+34"Split |
| Closure Type | Fiited Style |
| Additional Features | Cooling, Fully Elasticized, Long Lasting, Fade Resistant, Moisture Wicking |
| Theme | Number |
| Occasion | Wedding, Mother’s Day, New Year’s, Valentine’s Day, Father’s Day |
| Seasons | All, Winter, Summer, Spring |
| Subject Character | Solid |
| Pattern | Solid |
| Style Name | Asian |
| Color | Light Grey Solid |

## Product Details

- **Size:** Top Split King :78"x80"+34"Split
- **Material:** Cotton
- **Color:** Light Grey Solid
- **Pattern:** Solid
- **Brand:** Cottingon

## Images

![Cottingon 4 Piece Flex Head King Sheet Set, Top 34 Inch Split Sheets for Sleep Number Adjustable Beds, Soft Breathable 100% Egyptian Cotton, Fits Upto 16" Deep Mattress 78"X80"+ 34", Light Grey - Image 1](https://m.media-amazon.com/images/I/71iMyFVlepL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How well did this fit your flex top SN kings.  The split on bed is 25" and the split on this sheet is 34"?**
A: Our flex top sheets fit perfectly.  We ordered the king size sheets and they were perfect with deep pockets to fit over the mattress. The split for the top is a little longer than the mattress split but that works great for when you recline the top of the bed.  It has enough give to keep the sheet from popping of the corners.  I really like the quality of the sheets.

**Q: Will these fit the sleep number flex top king?**
A: Yes. I ordered it for my king size sleep number.

**Q: Do these sheets have the extra strap in the corners like the SN sheets?**
A: Yes

**Q: Will the 34" split top king sheet fit on a 32" split top king adjustable mattress? I didn't see an option for 32" sheets.**
A: Yes, the sheets fit very well. They fit better than the ones I bought with my bed. Love them!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Light PURPLE! Used 1-2 yrs, normal wash/dry, carefully put on split top, tricky the first time.
*by D***G on July 8, 2025*

I bought 3 different brands, and these were just as good as the others. All were good. Our first try with split top, not put on right, got a little stretched seam in the split notch...then put them on right, and they are great, they did not degrade after wash/dry on normal. The split top bed itself is a pain, so we change the bed together. I think these are the only good split top sheets that come in purple. I will buy more. They are nice, just make sure you put them deep down into the nook of the split top) before you adjust the bed.

### ⭐⭐⭐⭐⭐ A comfortable split king set
*by T***. on June 30, 2025*

This sheet set is fairly comfortable. I assume it will get even softer after more washings, I ordered the split king set and I will admit that it took me awhile to get in on my adjustable bed. It would have been nice to have directions or a tab with an arrow or something. Anyway, the "V" in the stitching goes at the top and separates the two mattresses. Once I got it on, I was able to raise and lower one side without it coming off anywhere. So I am very pleased with my purchase. I found it washed and dried just fine, but I used medium and not high heat.

### ⭐⭐⭐⭐ Breathable Cotton!
*by A***R on June 12, 2025*

Enjoying our first week with these sheets which I washed in hot water and dried on a high setting. They came out very soft. It is difficult to find Olympic queen sheets. For me, it’s all about sleeping comfortably on soft breathable fabric. This does the job. My only complaint is that I wish the fitted sheet was a little tighter, but not a dealbreaker. Not sure of durability over time as these are still new to us, but what a great price point !

## Frequently Bought Together

- Cottingon,Premium 400 TC 100% Egyptian Cotton,Flex Top King Sheets for Sleep Number Beds 16" Deep,King 34" - Light Grey
- Kingnex Waterproof Split Top King Mattress Protector for Adjustable Bed with Upper Flex 32-34 from Head Ultra Soft Bamboo Viscose Jersey Noiseless Fitted Mattress Cover

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**Shop now:** [https://www.desertcart.mx/products/458437805-cottingon-4-piece-flex-head-king-sheet-set-top-34](https://www.desertcart.mx/products/458437805-cottingon-4-piece-flex-head-king-sheet-set-top-34)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-02*