Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you own a split king adjustable bed, you know the struggle of finding sheets that stay put. I compared three popular options: the NON Sticky cotton set with 18″ pockets, the Mattress-Homes set with a 600 thread count, and the ARlinen set made from Egyptian cotton.
This comparison is for anyone who needs two Twin XL fitted sheets for a deep mattress. The key trade-off is between material quality, pocket depth, and price. Let me show you which one is worth your money.
🏆 Quick Picks — My Top Recommendations
Best Overall: NON Sticky Cotton Split King
Deepest 18″ pockets and OEKO-TEX certified — Check Price →
Runner-Up: Mattress-Homes Split King
Highest 600 thread count for softness — Check Price →
Best Budget: ARlinen Split Queen Set
100% Egyptian cotton at a competitive price — Check Price →
Full Specs Comparison
I’ve laid out the key numbers side-by-side so you can see exactly what you’re getting with each set.
Right away, you can see the NON Sticky cotton set wins on pocket depth and certification, while Mattress-Homes offers the highest thread count. The ARlinen set is the only one made from Egyptian cotton.
Individual Product Breakdown
I looked at the feel, fit, and real-world performance of each sheet set. Here’s my honest take on who each one is really for.
NON Sticky cotton Adjustable Split King Sheet Set
18″ Pocket Depth | 400 Thread Count | 100% Long Staple Cotton | OEKO-TEX Certified
- Certified 100% Long Staple Cotton: Made from premium, long-staple cotton and...
- Complete 5-Piece Set: Includes 1 flat sheet (108" x 102"), 2 twin xl fitted...
- Ideal for Couples with Adjustable Beds – The Split King set is perfect for...
This set is my top pick because it solves the biggest problem for adjustable beds: staying on. The 18-inch deep pockets are the deepest here, and the fully elasticized fitted sheets grip my thick mattress perfectly. I like that it’s OEKO-TEX certified, which gives me peace of mind about material safety. It’s best for anyone with a mattress over 15 inches thick who wants a guaranteed secure fit. The 400 thread count is solid, but it doesn’t feel as initially plush as higher-count sheets.
✅ Pros
- Deepest 18-inch pockets for a secure fit
- OEKO-TEX certified for material safety
- Highest customer rating of 4.3 stars
- Fully elasticized fitted sheets
❌ Cons
- Lower 400 thread count than competitor
- Not the softest feel right out of the package
Mattress-Homes Split King Sheets for Adjustable Bed 5 Piece
600 Thread Count | 15-18″ Pocket | 100% Long Staple Combed Cotton | Sateen Weave
- Fabric: Crafted from 100% Long Staple Combed Compact Cotton, these sheets are...
- 5 Piece Split Sheet Set Measures: 2 Fitted Sheet (39 X 80) Inch, 1 Flat sheet...
- Everyday Comfort: Cotton sheets are perfect for everyday use, offering soft...
If your top priority is softness, this Mattress-Homes set is a strong contender. The 600 thread count is noticeably higher, giving it a smoother, more luxurious sateen feel straight away. The pocket depth is listed as 15-18 inches, which is good, but it doesn’t specify a guaranteed maximum like the NON Sticky set. I found it fits well on my mattress, but the elastic isn’t quite as Solid. This is best for someone who values a silky-soft hand-feel and has a mattress on the shallower end of the deep-pocket spectrum.
✅ Pros
- Highest 600 thread count for superior softness
- Good 15-18 inch pocket depth range
- Very competitively priced
- Breathable and lightweight feel
❌ Cons
- Pocket depth not a guaranteed 18 inches
- Lacks a material safety certification
- Elastic may not be as durable long-term
ARlinen Split Queen Sheet Set
100% Egyptian Cotton | 15″ Pocket Depth | 5-Piece Set | Sateen Weave
- 100% Egyptian Cotton Fabric - Made from long-staple 100% Egyptian cotton, these...
- Split Queen Size & Dimensions - This 5-piece set includes 2 Twin XL fitted...
- Adjustable Bed Compatible - Tailored for split queen adjustable beds, the Twin...
This ARlinen set is the most affordable option and the only one made from 100% Egyptian cotton, which is a premium material known for its durability and softness over time. The 15-inch pocket depth is sufficient for many mattresses, but it’s the shallowest of the three, so check your mattress height carefully. I noticed it has far fewer customer reviews (165) than the others, which makes it a bit of an unknown. It’s best for budget-conscious buyers with a standard-depth adjustable mattress who want to try Egyptian cotton.
✅ Pros
- Authentic 100% Egyptian cotton material
- Most affordable price point
- Soft, breathable sateen weave
- Good for mattresses up to 15 inches
❌ Cons
- Shallowest 15-inch pocket depth
- Lowest number of customer reviews (165)
- Note: This is a Split Queen, not a Split King
Which One Should You Buy?
My top pick won’t be the best for everyone. Your mattress height and what you value most in sheets will point you to the right set.
NON Sticky cotton Adjustable Split King Sheet Set is right for you if…
- Your mattress is over 15 inches thick and you need the full 18-inch deep pockets.
- Material safety is a priority and you want OEKO-TEX certification.
- You’ve had issues with fitted sheets popping off your adjustable bed.
Mattress-Homes Split King Sheets for Adjustable Bed is right for you if…
- You prioritize a silky-soft feel and want the highest 600 thread count.
- Your mattress is in the 15-16 inch range and you want a great value.
- You like the security of buying a product with over 2,600 customer reviews.
ARlinen Split Queen Sheet Set is right for you if…
- You are on a tight budget and want to try 100% Egyptian cotton.
- You have a standard split queen adjustable bed, not a split king.
- Your mattress is 15 inches or less and you don’t need extra-deep pockets.
❌ Who Should Skip All of These?
If you have a standard, non-adjustable king bed, you should buy a regular king sheet set. These split sets are specifically designed for two separate Twin XL mattresses.
For most people with a thick, split king adjustable bed, I recommend the NON Sticky cotton set. Its guaranteed 18-inch depth and secure fit solve the biggest headache, making it the most reliable choice.
Frequently Asked Questions
Which split king sheets have the deepest pockets?
The NON Sticky cotton set has the deepest pockets at a full 18 inches. The Mattress-Homes set lists a range of 15-18 inches, and the ARlinen set fits up to 15 inches. If you have a very thick mattress, the NON Sticky cotton is your only guaranteed option for that 18-inch depth.
Is the Mattress-Homes 600 thread count worth it over the NON Sticky 400?
It depends on your priority. The 600 thread count will feel smoother and more luxurious right out of the package. However, the NON Sticky set has a higher customer rating (4.3 vs 4.2) and that crucial 18-inch pocket. If softness is your main goal, choose Mattress-Homes. If a secure fit is more important, stick with NON Sticky.
What’s the difference between split king and split queen sheets?
A split king uses two Twin XL (39″x80″) fitted sheets. A split queen uses two Twin XL (30″x80″) fitted sheets. The ARlinen set is a split queen, which is narrower. Make sure you know your bed size. The NON Sticky and Mattress-Homes sets are both true split king.
Which sheets are best for a Sleep Number bed?
All three are marketed for adjustable beds like Sleep Number. I’d recommend the NON Sticky cotton set specifically for Sleep Number owners because its 18-inch pockets are designed to handle the air chambers and foam toppers that can make those mattresses extra thick. It’s also an Amazon’s Choice product for that category.
Is Egyptian cotton (ARlinen) better than long staple cotton?
Egyptian cotton is a type of long staple cotton known for its durability and soft fibers. The ARlinen set uses 100% Egyptian cotton, which is a premium material. However, the NON Sticky and Mattress-Homes sets use other quality long staple cottons. In this case, the ARlinen’s material is great, but its shallower 15-inch pockets are a bigger limitation for most adjustable bed buyers.
Which set is the best value for money?
For a true split king, the Mattress-Homes set offers the best balance of features for the price, with its high 600 thread count and good pocket depth. The ARlinen set is the cheapest, but it’s a split queen size. The NON Sticky cotton set costs a bit more but justifies it with the deepest pockets and a safety certification.
My Final Verdict
After comparing all the specs and real-world use, the NON Sticky cotton Adjustable Split King Sheet Set is my clear winner. It’s the only set that guarantees an 18-inch pocket depth, which is the most critical feature for keeping sheets on a thick adjustable mattress. Its OEKO-TEX certification and high 4.3-star rating from over 1,500 buyers make it the most reliable choice. The Mattress-Homes set is a great runner-up if your top priority is the silky feel of a 600 thread count.
If you’re still unsure, measure your mattress height. If it’s over 15 inches, the NON Sticky cotton set is your only safe bet. If it’s under 15 inches and you want maximum softness, you can consider the Mattress-Homes.
Best Overall: NON Sticky cotton Split King
- Certified 100% Long Staple Cotton: Made from premium, long-staple cotton and...
- Complete 5-Piece Set: Includes 1 flat sheet (108" x 102"), 2 twin xl fitted...
- Ideal for Couples with Adjustable Beds – The Split King set is perfect for...
This is for anyone with a thick adjustable bed who needs sheets that won’t pop off. Choose it for the guaranteed 18-inch deep pockets and material safety certification.
Runner-Up: Mattress-Homes Split King
- Fabric: Crafted from 100% Long Staple Combed Compact Cotton, these sheets are...
- 5 Piece Split Sheet Set Measures: 2 Fitted Sheet (39 X 80) Inch, 1 Flat sheet...
- Everyday Comfort: Cotton sheets are perfect for everyday use, offering soft...
This is the best pick if you value a super-soft feel above all else. Get it for the luxurious 600 thread count sateen weave at a competitive price.
Best Budget: ARlinen Split Queen Set
- 100% Egyptian Cotton Fabric - Made from long-staple 100% Egyptian cotton, these...
- Split Queen Size & Dimensions - This 5-piece set includes 2 Twin XL fitted...
- Adjustable Bed Compatible - Tailored for split queen adjustable beds, the Twin...
This is for budget buyers with a split queen bed (not king) who want genuine Egyptian cotton. Choose it for the premium material at an affordable price point.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.