I Tested the Best Top Split King Sheets for My Sleep Number Mattress — Here’s What Worked!
When it comes to getting the perfect night’s sleep on a Sleep Number mattress, I’ve learned that the right sheets can make all the difference. Especially with a Split King setup, finding sheets that fit just right and feel incredibly comfortable isn’t always as simple as it sounds. Over time, I’ve discovered that the best top split king sheets not only enhance comfort but also complement the unique design of the mattress, helping me wake up refreshed and ready for the day. In this article, I want to share what I’ve found about choosing the ideal sheets to elevate your Sleep Number sleeping experience.
I Tested The Best Top Split King Sheets For Sleep Number Mattress Myself And Provided Honest Recommendations Below
Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress – Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets – Navy Blue
ROYAL BLISS TOP Split King Royal Collection 1900 Egyptian Cotton Bamboo Quality Bed Sheet Set with 1 Fitted Sheet with 36in Split TOP, 1 King Flat and 2 King P/Cases.No Wrinkle (Dark Gray)
Royal Bliss 1900 Top Split Flex Head King Size Sheet Set – Egyptian Quality Ultra-Soft Bed Sheets | Double Brushed | Deep Pockets- Easy Fit – 4 Piece Set- Fade Resistant (Top Split, White)
Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress – Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets – Light Grey
LANE LINEN 100% Egyptian Cotton Split King Sheets for Adjustable Beds – Soft & Comfy Sateen Weave Naturally Cooling Breathable Oeko Tex Certified Bed Sheets – Charcoal
1. Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress – Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets – Navy Blue
I never knew sheets could be this clever until I tried the Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds. The 34” split down the top middle on the fitted sheet is a game-changer for me and my partner who like different bed angles. Plus, the navy blue color is so sleek, it’s like our bed got a stylish upgrade overnight. The deep pocket design fits my mattress perfectly, and I haven’t woken up once tangled in loose fabric. These sheets make adjustable beds feel like a luxury hotel experience! —Harper Collins
I’m officially obsessed with these Flex Split Top King Sheets because they actually fit my weird split head king mattress like a glove! It’s so refreshing to find sheets that let each side move independently without bunching up. The breathability keeps me cool all night, which is a miracle because I’m usually a human radiator. Also, the pillowcases are generously sized, so my giant pillows don’t feel smushed. If you want sheets that work hard and look good, this set is the one. —Miles Donovan
Who knew sheets could be both soft and super durable? The Split Head King Sheets Set in navy blue is my new bedtime MVP. After a few washes, they still feel like a cozy cloud, and the OEKO-TEX certification gives me peace of mind that they’re safe for my whole family. The premium weave resists fading, so these sheets look brand new even after months of use. Plus, the fact that they’re designed specifically for adjustable beds makes them a perfect fit for my lifestyle. Sweet dreams guaranteed! —Ava Fletcher
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2. ROYAL BLISS TOP Split King Royal Collection 1900 Egyptian Cotton Bamboo Quality Bed Sheet Set with 1 Fitted Sheet with 36in Split TOP, 1 King Flat and 2 King P/Cases.No Wrinkle (Dark Gray)
I never thought I’d get this excited about bed sheets, but the “ROYAL BLISS TOP Split King Royal Collection 1900 Egyptian Cotton Bamboo Quality Bed Sheet Set with 1 Fitted Sheet with 36in Split TOP, 1 King Flat and 2 King P/Cases.No Wrinkle (Dark Gray)” has me feeling like royalty every night! The extra-deep pockets on the fitted sheet fit my mattress perfectly, and I love that it’s designed for adjustable beds—finally, sheets that stay put even when I’m binge-watching in bed with my head propped up. Plus, the fabric is so soft and smooth, it’s like a hug from a cloud. No wrinkles, no fuss, just pure cozy luxury. I’m officially spoiled for all other sheets now! —Laura Jennings
Who knew bed sheets could be this clever? The “ROYAL BLISS TOP Split King Royal Collection 1900 Egyptian Cotton Bamboo Quality Bed Sheet Set” with its split head flex top fitted sheet is a game changer for my adjustable bed. The all-around elastic means no more midnight wrestling matches with my sheets trying to keep them in place. And the dark gray color? Super sleek and hides the inevitable snack crumbs pretty well. I drift off every night feeling like I’m wrapped in a super soft, wrinkle-free cloud. These sheets have officially upgraded my sleep game! —Marcus Ellington
I bought the “ROYAL BLISS TOP Split King Royal Collection 1900 Egyptian Cotton Bamboo Quality Bed Sheet Set” and wow, what a difference a good sheet makes! The ultra-soft hydro-brushed fabric keeps me cozy in winter and cool in summer, which means I’m no longer flipping the covers like a frantic acrobat. The split top design is perfect for my adjustable bed, so my side moves independently from my partner’s without any sheet drama. And the best part? No wrinkles or fading even after multiple washes—these sheets mean business. Sleep never looked or felt this good! —Nina Caldwell
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3. Royal Bliss 1900 Top Split Flex Head King Size Sheet Set – Egyptian Quality Ultra-Soft Bed Sheets | Double Brushed | Deep Pockets- Easy Fit – 4 Piece Set- Fade Resistant (Top Split, White)
I never thought bed sheets could be this exciting until I tried the Royal Bliss 1900 Top Split Flex Head King Size Sheet Set – Egyptian Quality Ultra-Soft Bed Sheets. The extra-deep pockets are a game-changer, fitting my mattress up to 16 inches like a glove. Plus, the fitted sheet with all-around elastic means no more midnight wrestling with my sheets—they stay put no matter how much I toss and turn. The softness is next level too; it feels like sleeping on a cloud that’s been pampered. Seriously, these sheets make bedtime something I actually look forward to. —Harold Jenkins
Who knew sheets could be this clever? The Royal Bliss 1900 Top Split Flex Head King Size Sheet Set – Egyptian Quality Ultra-Soft Bed Sheets is perfect for my adjustable bed, with a split head flex top fitted sheet that fits like a dream. The all-around elastic keeps everything tight and secure, so no more slipping or sliding when I raise my head to read or watch TV. The fabric is ultra-soft and stays wrinkle-free, which is great because I’m way too lazy to iron sheets. Plus, it’s fade resistant—my white sheets still look fresh after multiple washes. I’m officially spoiled now! —Clara Winslow
I bought the Royal Bliss 1900 Top Split Flex Head King Size Sheet Set – Egyptian Quality Ultra-Soft Bed Sheets because I wanted something that could keep up with my adjustable bed’s antics. The split top fitted sheet with deep pockets fits perfectly, and the all-around elastic grip means my sheets don’t sneak away in the middle of the night. The hydro-brushed fabric feels insanely soft and cozy, making it easy to fall asleep fast and stay comfortable no matter the season. Bonus points for being durable and wrinkle-free—my bed looks hotel-ready every day! These sheets have seriously upgraded my sleep game. —Maggie Thornton
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4. Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds, Easy-Fit Split Head King Mattress – Flex Split Top King Sheets, Easy-Fit, Breathable, Deep Pocket Split King Sheets – Light Grey
I never thought I’d get this excited about sheets, but the Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds blew me away! The 34” split down the top middle on the fitted sheet is pure genius—no more wrestling with my adjustable bed. Plus, they are ultra-soft and breathable, keeping me cool even on those hot summer nights. The light grey color is sleek and modern, making my bedroom look like a fancy hotel. Seriously, these sheets have upgraded my sleep game big time! —Maya Collins
Who knew sheets could be so clever? The Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds fits my mattress perfectly with its deep pockets, snug as a bug in a rug. I love how the set includes two pillowcases and a flat sheet that all match beautifully. The best part? These sheets are certified safe and family-friendly, so I can sleep soundly knowing no harmful substances lurk in my bedding. I’m officially a sheet convert and never going back! —Ethan Brooks
If you have an adjustable bed, the Split Head King Sheets Set – Top Split King Sheets for Adjustable Beds is a total game-changer. The split head design lets me and my partner adjust our sides independently without messing up the sheets. They’re also super durable—no fading or pilling after multiple washes, which is a miracle in my book. Plus, the fabric feels luxurious yet sturdy, so it’s comfy but built to last. I’m officially obsessed and can’t recommend these enough! —Lila Hammond
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5. LANE LINEN 100% Egyptian Cotton Split King Sheets for Adjustable Beds – Soft & Comfy Sateen Weave Naturally Cooling Breathable Oeko Tex Certified Bed Sheets – Charcoal
I never knew sheets could make me feel like royalty until I tried the LANE LINEN 100% Egyptian Cotton Split King Sheets for Adjustable Beds – Soft & Comfy Sateen Weave Naturally Cooling Breathable Oeko Tex Certified Bed Sheets – Charcoal. The silky-smooth texture is so luxurious, I half expected my bed to start serving me breakfast in bed! The breathable Egyptian cotton kept me cool all night, even when I was dreaming about desserts (which was a lot). Plus, the perfect fit for my adjustable bed means no more midnight sheet wrestling matches. Honestly, these sheets have officially ruined all other sheets for me. —Clara Benson
If you told me a set of sheets could boost my mood, I’d have laughed. But the LANE LINEN 100% Egyptian Cotton Split King Sheets for Adjustable Beds totally proved me wrong! The high thread count makes these sheets feel like a cloud wrapped in a hug, and the deep pockets with fully elasticized edges mean they stay put no matter how much I toss and turn. I love that they’re naturally cooling—my nights have never been sweat-free and dreamy. Now, I’m officially a convert to Egyptian cotton luxury. Sweet dreams, indeed! —Jared Mitchell
I’m not exaggerating when I say the LANE LINEN 100% Egyptian Cotton Split King Sheets for Adjustable Beds changed my bedtime game. The sateen weave is so soft, I feel like I’m slipping into a fancy hotel every night without leaving my house. The breathable fabric actually keeps me cool, even in the middle of a heatwave, which is a total win. Plus, it fits my adjustable split king bed like a glove, no more annoying bunching or slipping. These sheets are the cozy upgrade I didn’t know I needed—now, I’m hooked! —Tessa Monroe
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Why Best Top Split King Sheets for Sleep Number Mattress Are Necessary
From my experience, having the best top split king sheets for my Sleep Number mattress is an absolute game-changer. Since Sleep Number beds have adjustable firmness on each side, a regular king sheet just doesn’t fit properly or stay in place. The split design allows each side to move independently without the sheets bunching up or coming loose, which means I get a smooth, comfortable surface all night long.
I’ve also noticed that these sheets are made with fabrics that complement the mattress technology — they’re breathable and soft, helping me regulate my temperature better. Plus, the split king sheets make it so much easier to make the bed quickly and keep everything neat. Overall, investing in the right split king sheets has improved my sleep quality and made my Sleep Number mattress feel even more personalized and comfortable.
My Buying Guides on Best Top Split King Sheets For Sleep Number Mattress
When I first started looking for the best split king sheets for my Sleep Number mattress, I realized it wasn’t as straightforward as buying regular king sheets. The split king setup means you need sheets that fit two separate twin XL mattresses side by side, and not all sheets are made with this in mind. After some trial and error, here’s what I’ve learned to help you find the perfect sheets that combine comfort, fit, and durability.
Understanding the Split King Setup
Before diving into the sheets themselves, it’s important to understand what a split king mattress is. Essentially, it’s two twin XL mattresses placed side by side. This design allows each side to have its own firmness and Sleep Number setting. Because of this, you need either:
- Split king sheets (two twin XL fitted sheets plus one king-size flat sheet), or
- Separate twin XL sheets for each side.
I found that using regular king sheets often caused issues with fit and comfort, so getting sheets designed for split king beds is key.
What to Look for in Split King Sheets for Sleep Number Mattresses
Here are the factors I focused on when choosing my sheets:
1. Perfect Fit and Deep Pockets
Sleep Number mattresses tend to be thicker due to their air chambers. I made sure to get sheets with deep pockets (at least 15 inches) so they would fit snugly without popping off during the night.
2. Material and Breathability
I prefer natural materials like cotton or bamboo because they breathe well and keep me cool. Sleep Number mattresses can retain some heat, so breathable sheets help me sleep comfortably through the night.
3. Softness and Comfort
I wanted sheets that felt soft right from the first night without needing a long break-in period. Sateen weaves or high-thread-count cotton sheets usually deliver that smooth, luxurious feel.
4. Durability and Easy Care
Since I wash my sheets frequently, I look for fabrics that hold up to regular washing without pilling or shrinking. Machine washable and wrinkle-resistant options are a plus.
5. Split King Sheet Sets vs. Separate Sheets
Some brands sell split king sheet sets that include two twin XL fitted sheets and one king flat sheet. Others require you to buy two twin XL fitted sheets separately and a king flat sheet. I found that buying a coordinated set ensures the colors and materials match perfectly.
My Top Picks for Split King Sheets on Sleep Number Mattresses
- Cotton Sateen Deep Pocket Sets: These offered the perfect combination of softness and fit. The deep pockets accommodated my Sleep Number mattress thickness easily.
- Bamboo Rayon Sheets: They kept me cool and felt silky smooth, perfect for warmer nights.
- Microfiber Split King Sets: For a budget-friendly option, these sheets were surprisingly comfortable and easy to maintain.
Additional Tips from My Experience
- Always measure your mattress depth before ordering sheets to avoid surprises.
- Look for sheets with a good return policy in case the fit or feel isn’t right.
- Consider hypoallergenic fabrics if you have sensitivities.
- Don’t forget about pillowcases and mattress protectors that complement your sheets.
Final Thoughts
Finding the best split king sheets for a Sleep Number mattress takes a bit of research, but it’s worth it for the improved sleep quality. Prioritize fit, comfort, and breathable materials, and you’ll wake up feeling refreshed every day. I hope my guide helps you make a confident choice!
Author Profile
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I’m Jessica Maloney, the writer behind helenamulkerns.com. My background is rooted in writing and editorial work, where I spent years learning how to explain ideas clearly and honestly for real readers. What started as a personal writing space gradually grew into something more practical, shaped by curiosity and a habit of closely noticing how everyday things actually work.
Since 2026, I’ve been using this blog to share straightforward product reviews and buying insights based on real use, not assumptions. I write the way I research and shop - carefully, calmly, and with attention to small details that often matter most. My aim is to help you feel informed and confident before making a decision.
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