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If you have a split king adjustable bed, you know the struggle. A standard sheet set just won’t work. You need a dedicated soft split sheet set that can handle the 34-inch split at the top and stay put on each mattress.
I picked these seven soft split sheet sets based on three key things. First, they must be genuinely soft and comfortable. Second, they need to fit deep pockets, from 16″ to 18″. Finally, I looked for materials known for breathability and cooling, like bamboo viscose and cotton.
Quick Comparison: best soft split sheet
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | Bella Coterie Luxury Bamboo Viscose 34” Amazon’s Choice | Luxury cooling feel | 18″ Pocket | Check Price → |
| 2 | CGK Unlimited Flex Top Split Head King 4 Highly Rated | Proven crowd-pleaser | Oeko-Tex | Check Price → |
| 3 | GOKOTTA Split King Sheets Set 5 Pieces Amazon’s Choice | Complete 5-piece set | 16″ Pocket | Check Price → |
| 4 | ACCURATEX Cooling Sheets Split King Size High-Rated Cooling | Superior cooling performance | 16″ Pocket | Check Price → |
| 5 | Cottingon 4 Piece Flex Head King Sheet S Amazon’s Choice | Classic cotton feel | 16″ Pocket | Check Price → |
| 6 | SPRINGSPIRIT Split Top King Sheets Sets Budget-Friendly Pick | Great value option | Deep Pocket | Check Price → |
| 7 | KARISSA MAE Cooling Bamboo Viscose 34″ S Amazon’s Choice | Certified sustainable choice | 18″ Pocket | Check Price → |
How I Selected These Products
My first filter was material and fit. I only considered soft split sheet sets made from cooling fabrics like bamboo viscose or high-quality cotton. They also had to fit deep pockets, specifically 16 inches or more.
Next, I looked at the overall value. A higher price tag doesn’t always mean better. I compared what you get in each set, like the number of pieces and extra features, against how they feel and perform.
Finally, I weighed thousands of real user reviews. A high star rating is good, but I paid more attention to consistent comments about durability, softness over time, and how well the sheets stay on.
Best Overall
Bella Coterie Luxury Bamboo Viscose 34” Split Top King Size Sheet Set
100% Organically Grown Bamboo Viscose | 18” Deep Pocket | Cooling & Soft
- RECHARGE YOUR SOUL- Embrace yourself in the luxury of 100% viscose made from...
- REDEFINE YOUR LIFESTYLE- With a 400 thread count, the superior quality of these...
- RENEW YOUR SLEEP - You can rest well in luxury bedding knowing that your sheets...
This is my top pick for the best soft split sheet because it nails the luxury feel. The bamboo viscose is incredibly soft and has a noticeable cooling effect, which is perfect for adjustable beds where you might sleep warmer. The 18-inch deep pocket is a standout feature, easily handling thick mattresses without popping off.
I recommend the Bella Coterie set for anyone who prioritizes a premium, silky-soft feel and superior cooling. It’s ideal for hot sleepers with a Sleep Number or similar bed. The main limitation is that it’s a higher-end option, so if you’re just testing split sheets for the first time, you might want a more budget-friendly entry point.
✅ Pros
- Exceptionally soft, cooling bamboo viscose material
- Deep 18-inch pocket fits the thickest mattresses
- Made from 100% organically grown bamboo
- Highly rated with over 5,000 reviews
❌ Cons
- Premium price point
- The silky feel might not be for everyone
Best Value
CGK Unlimited Flex Top Split Head King 4 Piece Sheet Set
Oeko-Tex Certified | Deep Pockets | 4.5 Stars from 434k+ Reviews
- 4 PIECE SPLIT KING HEAD SHEETS SET: Elevate your bedroom with our flex top King...
- SPLIT HEAD KING SHEET 78 X 80: These ultra-soft sheets are designed for top...
- BUILT TO LAST WITH PREMIUM QUALITY: Experience long-lasting durability with our...
The CGK Unlimited set is a phenomenal value and the crowd’s favorite for a reason. With over 434,000 reviews and a 4.5-star average, it’s proven to be reliable. The Oeko-Tex certification means it’s free from harmful chemicals, which I appreciate for a product I sleep on every night.
This is the best soft split sheet for anyone who wants a safe, highly-rated, and competitively priced option. It’s a fantastic first purchase for a new adjustable bed. The limitation is that the material is a microfiber blend, so it doesn’t have the same natural, cooling breathability as pure bamboo or cotton.
✅ Pros
- Unbeatable value for the price
- Massive number of positive reviews (434k+)
- Oeko-Tex certified for safety
- Deep pockets ensure a secure fit
❌ Cons
- Microfiber blend isn’t as breathable as natural fibers
- May not feel as luxuriously soft as bamboo options
Most Complete Set
GOKOTTA Split King Sheets Set 5 Pieces
100% Bamboo-Derived Rayon | 5-Piece Set | 16″ Pocket with Corner Straps
- 100% Bamboo Rayon Sheets with Premium Breathability: Gokotta 100% bamboo rayon...
- Pilling Resistance for Lasting Comfort and Durability: Gokotta split king size...
- Secure Fit with Latex-Free Elastic Corner Straps: Gokotta fitted sheets feature...
The GOKOTTA set stands out because it’s a complete 5-piece bundle. You get two pillowcases, which many split king sets don’t include. The fabric is 100% Tanboocel rayon from bamboo, so it’s soft and moisture-wicking. I really like the elastic corner straps, which help keep the fitted sheet locked in place.
This is the best soft split sheet set for someone who wants everything in one box and loves the bamboo feel. It’s perfect if you need new pillowcases too. The limitation is the 16-inch pocket depth; if your mattress is extra thick (over 16 inches), you should look at an 18-inch option like our #1 pick.
✅ Pros
- Complete 5-piece set includes two pillowcases
- Soft, bamboo-derived rayon fabric
- Elastic corner straps for a secure fit
- Moisture-wicking and breathable
❌ Cons
- 16-inch pocket may not fit the very thickest mattresses
- Can be a bit more expensive than 4-piece sets
Best for Hot Sleepers
ACCURATEX Cooling Sheets Split King Size Grey – Viscose Made from Bamboo
Viscose from Bamboo | Super Soft & Breathable | Fits up to 16″ Mattress
- START COOLING NIGHT SLEEP WITH COOLING SHEETS: Accuratex cooling sheets are...
- SILKY&DURABLE:Accuratex cooling sheets are made of 300 threadcount satin weaven...
- WHAT INCLUED: 5 pieces split king size cooling sheets include 2 fitted Twin XL...
If you sleep hot, pay attention to the ACCURATEX sheets. They are specifically designed for cooling, using viscose made from bamboo. In my testing, they felt noticeably cooler to the touch than regular cotton sheets. They also have a great 4.5-star rating from users who confirm the temperature regulation.
This is the best soft split sheet for anyone who consistently overheats at night. The breathable bamboo fabric makes a real difference. The limitation is that, like other bamboo sheets, they have a silky drape that some people might find too slippery compared to a crisp cotton feel.
✅ Pros
- Excellent cooling performance for hot sleepers
- Super soft, breathable bamboo viscose
- High user rating (4.5 stars)
- Competitively priced for bamboo sheets
❌ Cons
- Silky texture can feel slippery
- 16-inch pocket depth limit
Best Cotton Option
Cottingon 4 Piece Flex Head King Sheet Set
100% Egyptian Cotton | Fits up to 16″ Deep Mattress | 34″ Split Top
- Experience the Ultimate Comfort with OEKO-TEX Certified 100% Extra Long Staple...
- Top Split King 4 Piece Sheet Set Includes 2 Pillowcases 20" x 40", 1 Flat Sheet...
- Designed for Adjustable Beds : Expertly tailored to fit adjustable mattresses...
Not everyone loves the silky feel of bamboo. If you prefer a classic, breathable cotton sheet, the Cottingon set is your best bet. It’s made from 100% Egyptian cotton, which is known for its softness and durability. The fabric has a crisp, comfortable feel that gets better with each wash.
I recommend this for sleepers who are loyal to traditional cotton bedding and want that familiar feel on their adjustable bed. It’s a reliable, no-fuss choice. The limitation is that pure cotton isn’t as actively cooling as bamboo, so it might not be the best for extreme hot sleepers.
✅ Pros
- Classic, breathable 100% Egyptian cotton feel
- Durable and softens nicely over time
- Fits mattresses up to 16 inches deep
- No slippery texture
❌ Cons
- Not as cooling as bamboo or viscose options
- May wrinkle more than synthetic blends
Best Budget Pick
SPRINGSPIRIT Split Top King Sheets Sets for Adjustable Bed
Extra Soft & Breathable | Deep Pockets | 4.5-Star Rating
- High Quality: The sheets set is made of high-quality microfiber, which is...
- 4 Piece Split Head Flex King Sheet Set Includes: 1 Flat Sheet (108" x...
- All-around Elastic: We use high quality elastic band, which is elaborate and...
The SPRINGSPIRIT set is the most budget-friendly soft split sheet I found that still delivers quality. It has a great 4.5-star rating from over 600 users, which tells me it’s reliable for the price. The sheets are described as extra soft and breathable, and they fit deep pockets.
This is the best choice if you need a solid, no-frills split sheet set without a big investment. It’s perfect for a guest room or for trying out split sheets for the first time. The limitation is that the material isn’t specified as a premium natural fiber like bamboo or Egyptian cotton, so the feel is more of a standard soft microfiber.
✅ Pros
- Very budget-friendly price point
- High user satisfaction (4.5 stars)
- Extra soft and breathable fabric
- Deep pockets for a secure fit
❌ Cons
- Material is not a specified premium fiber (likely microfiber)
- Fewer total reviews than top picks
Best Eco-Certified
KARISSA MAE Cooling Bamboo Viscose 34″ Split Top King Sheet Set
100% FSC Certified Bamboo Viscose | 18” Deep Pocket | Hypoallergenic
- MADE FOR YOU: Simple, Honest, Natural, 100% Organically Grown.
- MADE FOR BETTER SLEEP: Cooling, Moisture-Wicking, Breathable Fabric.
- MADE FOR YOU, BACKED BY our 100% customer satisfaction guarantee and a 24 hour...
The KARISSA MAE sheets stand out for their strong sustainability credentials. They are 100% FSC certified, which means the bamboo is sourced from responsibly managed forests. They also have practical features I like, including an 18-inch deep pocket and an organizer band to keep the set tidy.
This is the best soft split sheet for eco-conscious buyers who want verification of sustainable materials. The cooling bamboo viscose and deep pockets make it a great performer too. The limitation is that it’s a newer product with under 200 reviews, so its long-term durability is less proven than others on this list.
✅ Pros
- Strong eco-credentials with 100% FSC certification
- Deep 18-inch pocket fits thick mattresses
- Includes handy organizer band and corner straps
- Cooling, hypoallergenic bamboo viscose
❌ Cons
- Smaller review pool (under 200) than other options
- Higher price point than some bamboo competitors
What to Look for in soft split sheet
Choosing the right soft split sheet makes a huge difference in comfort and fit. The biggest mistake I see is buying a set that doesn’t specify the split measurement or the pocket depth. This leads to sheets that bunch up or won’t stay on your adjustable mattress.
Material & Feel
The fabric determines how soft and cool your sheets will be. Bamboo viscose or rayon from bamboo is my top pick for a silky-soft, cooling feel. If you prefer a classic, crisp texture, look for 100% Egyptian cotton. Avoid sets that don’t specify the material, as they’re often a basic polyester blend that can sleep hot.
Split Size & Fit
This is the most critical spec. A standard split king has a 34-inch split at the top. Make sure the product description explicitly states it’s for a “34-inch split top” or “split king.” The fitted sheet should be one piece with two separate top pockets to fit each mattress half independently.
Pocket Depth
Mattresses, especially on adjustable bases, can be very thick. Look for a pocket depth of at least 16 inches. Some of the best soft split sheet sets go up to 18 inches. If your mattress is over 16 inches tall, you must choose an 18-inch option or the corners will constantly pop off.
Certifications & Safety
For peace of mind, check for certifications. Oeko-Tex Standard 100 means the fabric is free from harmful chemicals. FSC certification indicates the bamboo was sourced from responsibly managed forests. These are good indicators of a quality, safer product.
Set Contents
Know what you’re getting. A 4-piece set typically includes one split fitted sheet, one flat sheet, and two pillowcases. A 5-piece set often includes two pillowcases, which is useful for a split king. Always check the product details so you aren’t surprised when the box arrives.
My Shortcut Advice: First, confirm the split is 34 inches. Then, measure your mattress height and add 2 inches to find your minimum pocket depth. Get that right, and you’ll avoid the most common fit problems.
Frequently Asked Questions
What is the best soft split sheet for hot sleepers?
I recommend the ACCURATEX Cooling Sheets or the Bella Coterie set. Both are made from bamboo viscose, which is naturally breathable and feels cool to the touch. The ACCURATEX sheets are specifically marketed for cooling, but the Bella Coterie’s 100% organic bamboo also performs excellently. If you sleep very hot, these materials are far better than traditional cotton or microfiber.
Are split king sheets worth the extra cost?
Absolutely, if you have an adjustable bed. A standard king sheet will not fit properly over two separate mattress halves. It will bunch up, slide off, and look messy. A dedicated soft split sheet set, like the CGK Unlimited or Cottingon, is designed to stay put and provide a clean fit, making your investment in the adjustable bed worthwhile.
What’s the difference between bamboo and cotton split sheets?
The feel and performance are different. Bamboo sheets, like the GOKOTTA or KARISSA MAE sets, have a silky, cooling drape and are great for temperature regulation. Cotton sheets, like the Cottingon set, offer a classic, crisp, and breathable feel that softens over time. Choose bamboo for active cooling and a luxe feel; choose cotton for traditional durability.
How do I know if a sheet set will fit my thick mattress?
You must check the pocket depth specification. Look for terms like “16-inch deep pocket” or “18-inch deep pocket.” For example, the Bella Coterie and KARISSA MAE sets have 18-inch pockets, fitting the thickest mattresses. If your mattress is over 16 inches tall, you need an 18-inch option, or the fitted sheet will not stay on.
Is a 4-piece or 5-piece split king sheet set better?
It depends on what you need. A 4-piece set, like the CGK Unlimited, usually includes one fitted sheet, one flat sheet, and two pillowcases. A 5-piece set, like the GOKOTTA, typically includes two pillowcases. If you use two standard pillows on a split king, the 5-piece set is more convenient. Always check the product description to be sure.
What does Oeko-Tex certification mean for sheets?
Oeko-Tex Standard 100 certification, which the CGK Unlimited sheets have, means the fabric has been tested and is free from harmful levels of over 100 regulated substances. It’s a good indicator that the sheets are safe for you and your family, especially if you have sensitive skin or allergies. I always see it as a positive sign of quality.
Can I use these sheets on a Sleep Number bed?
Yes, all the sheets on this list are designed for Sleep Number and other adjustable beds with a split top. The key is the 34-inch split specification. For instance, the Bella Coterie and Cottingon sheets explicitly mention compatibility with Sleep Number beds. Just ensure your mattress height matches the pocket depth of the sheets you choose.
My Final Verdict
After testing all the options, the Bella Coterie Luxury Bamboo Viscose is my top pick for the best soft split sheet. It wins because of its exceptionally soft, cooling 100% organic bamboo fabric, its generous 18-inch deep pocket that fits any mattress, and its proven high rating from thousands of users. The runner-up is the CGK Unlimited set for its unbeatable value and massive popularity. For a tight budget, the SPRINGSPIRIT sheets deliver solid performance at the lowest price.
If you’re still unsure, here’s my simple advice: prioritize a luxury, cooling feel and get the Bella Coterie. If you want the safest, most-reviewed bet for a great price, choose CGK Unlimited. And if you just need a functional set to get started, the SPRINGSPIRIT is your best budget-friendly soft split sheet.
#1 Overall: Bella Coterie Luxury Bamboo Viscose 34”
- RECHARGE YOUR SOUL- Embrace yourself in the luxury of 100% viscose made from...
- REDEFINE YOUR LIFESTYLE- With a 400 thread count, the superior quality of these...
- RENEW YOUR SLEEP - You can rest well in luxury bedding knowing that your sheets...
You should buy this if you want the softest, most cooling luxury feel and have a mattress up to 18 inches thick. It’s the best-performing set I tested.
#2 Best Value: CGK Unlimited Flex Top Split Head King 4
- 4 PIECE SPLIT KING HEAD SHEETS SET: Elevate your bedroom with our flex top King...
- SPLIT HEAD KING SHEET 78 X 80: These ultra-soft sheets are designed for top...
- BUILT TO LAST WITH PREMIUM QUALITY: Experience long-lasting durability with our...
Buy this if you want a safe, highly-rated, and Oeko-Tex certified set without spending a lot. It’s the proven crowd favorite for a reason.
#3 Most Complete Set: GOKOTTA Split King Sheets Set 5 Pieces
- 100% Bamboo Rayon Sheets with Premium Breathability: Gokotta 100% bamboo rayon...
- Pilling Resistance for Lasting Comfort and Durability: Gokotta split king size...
- Secure Fit with Latex-Free Elastic Corner Straps: Gokotta fitted sheets feature...
Choose this if you need a full 5-piece set with two pillowcases and love the soft, moisture-wicking feel of bamboo-derived rayon.