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If you own a split king adjustable bed, you’re probably deciding between these three sheet sets. The SPRINGSPIRIT 4-piece set uses a single split-head fitted sheet, the 5-piece set has two separate fitted sheets, and the CGK Unlimited set includes a massive 7 pieces with 4 pillowcases.
This comparison is for anyone who needs sheets that move with their adjustable mattress. The key trade-off is between simplicity and extra pieces. I’ve tested the specs and user reviews to help you pick the perfect set.
🏆 Quick Picks — My Top Recommendations
Best Overall: SPRINGSPIRIT 4 Piece Set
Best-rated (4.5 stars from 681 reviews) with a simple, effective split-head design — Check Price →
Runner-Up: CGK Unlimited 7 Piece Set
Most pieces (includes 4 pillowcases) and fits mattresses up to 16″ deep — Check Price →
Best for Separate Fitted Sheets: SPRINGSPIRIT 5 Piece Set
Uses two individual fitted sheets, which some adjustable bed owners prefer — 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.
The CGK Unlimited set wins on sheer quantity and pocket depth, but the SPRINGSPIRIT 4-piece set has the highest customer rating. Your choice really depends on whether you want more pillowcases or a simpler, highly-rated design.
Individual Product Breakdown
I looked at the real-world performance, user feedback, and specific design of each set. Here’s my honest take on who each one is really for.
SPRINGSPIRIT Split Top King Sheets Sets for Adjustable Bed
4 Piece Set | 15″ Pocket | Microfiber | 4.5 Stars (681 reviews)
- 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...
This is my top pick because it has the highest customer rating at 4.5 stars from over 680 people. I like that it uses a single split-head fitted sheet, which is a simpler design that many find easier to manage than two separate pieces. It’s perfect for someone who wants a reliable, well-reviewed set without extra fuss. The limitation is you only get two pillowcases, so it’s not ideal for couples who each use multiple pillows.
✅ Pros
- Highest rating (4.5 stars from 681 reviews)
- Simple split-head fitted sheet design
- All-around elastic for a secure fit
- Lifetime guarantee from the brand
❌ Cons
- Only includes 2 pillowcases
- Fewer color options than the CGK set
SPRINGSPIRIT Split King Sheets Sets for Adjustable Bed
5 Piece Set | 15″ Pocket | Polyester | 3.8 Stars (13 reviews)
- Elegant Comfort Split King-Size Dimensions - Flat sheet 108" x 102", 2 Fitted...
- ULTRA SOFT SHEETS: Our proprietary hydro-brushed fabric is ultra-soft...
- Designed for Adjustable Beds : Expertly tailored to fit adjustable mattresses...
This 5-piece set is unique because it includes two completely separate fitted sheets, one for each side of the split king. This is the design some adjustable bed purists prefer, as it allows for maximum independent movement. It’s best for someone who is certain they want individual fitted sheets and doesn’t mind the lower review count. The main drawback is its much lower customer rating of 3.8 stars, based on only 13 reviews, which makes it a bit of a gamble.
✅ Pros
- Two separate fitted sheets for true independent movement
- 5-piece set includes flat sheet and 2 pillowcases
- Wrinkle- and fade-resistant material
❌ Cons
- Lowest rating (3.8 stars from only 13 reviews)
- Very limited color choice (only grey)
- Material is polyester, not microfiber
CGK Unlimited Split King Sheets Set 7 Piece – Includes 4 Pillowcases
7 Piece Set | 16″ Pocket | Microfiber | 4.4 Stars (126,285 reviews)
- 7 PIECE BED SHEET SET: 4 pillow cases, 1 flat sheet, and 2 fitted sheets. Flat...
- DEEP POCKETS/ EASY FIT: They fit mattresses up to around 16 inches deep. If your...
- FEEL THE DIFFERENCE: If you're looking for very soft sheets, you’ve found...
You get the most for your money here: a full 7 pieces including four pillowcases, which is a huge perk for couples. The 16-inch pocket depth is also the deepest of the three, fitting thicker mattresses. This set is ideal for anyone who wants maximum pillow coverage and loves having over 40 color options to match their bedroom. The trade-off is that, with over 126,000 reviews, it’s a very popular set, but its 4.4-star rating is just a hair below the top SPRINGSPIRIT set.
✅ Pros
- Most pieces (7) including 4 pillowcases
- Deepest 16-inch pocket for thick mattresses
- Massive color selection (40+ options)
- Excellent rating from a huge sample (4.4 stars from 126,285 reviews)
❌ Cons
- Slightly lower rating than the top SPRINGSPIRIT set
- The sheer number of pieces might be overkill for some
Which One Should You Buy?
After looking at all the specs and reviews, I can tell you there’s no single “best” sheet set. The right choice depends entirely on what you prioritize for your adjustable bed.
SPRINGSPIRIT Split Top King Sheets Sets for Adjustable Bed is right for you if…
- You want the highest-rated option with a 4.5-star score from over 680 buyers.
- You prefer a simpler, single split-head fitted sheet design for easier bed-making.
- You value a brand’s lifetime guarantee and don’t need extra pillowcases.
SPRINGSPIRIT Split King Sheets Sets for Adjustable Bed is right for you if…
- You are certain you want two completely separate fitted sheets for maximum independent movement.
- You need a 5-piece set and are okay with a lower number of customer reviews.
- You want wrinkle-resistant sheets and the color grey works for your bedroom.
CGK Unlimited Split King Sheets Set 7 Piece is right for you if…
- You want the most pieces, especially the four pillowcases for a couple.
- You have a very thick mattress that needs the 16-inch deep pockets.
- You love having a huge selection, with over 40 color options to choose from.
❌ Who Should Skip All of These?
If you don’t have a split king adjustable bed, you should look at standard sheet sets. Also, if you are specifically looking for 100% cotton, linen, or bamboo sheets, these are all made from microfiber or polyester.
For most people, I recommend the SPRINGSPIRIT 4-Piece set for its proven track record and simple, effective design. It’s the safest, most reliable bet for a great night’s sleep on an adjustable bed.
Frequently Asked Questions
What’s the main difference between the SPRINGSPIRIT 4-piece and 5-piece sets?
The main difference is the fitted sheet design. The 4-piece set uses a single split-head fitted sheet, while the 5-piece set includes two completely separate fitted sheets. This means the 5-piece set offers more independent movement for each side of the adjustable bed, but the 4-piece set is simpler to manage and has a much higher customer rating of 4.5 stars versus 3.8 stars.
Is the CGK Unlimited 7-piece set worth it over the SPRINGSPIRIT sets?
Yes, if you want more pillowcases and a deeper pocket. The CGK set gives you four pillowcases instead of two, and its 16-inch pocket depth beats the 15-inch depth of the SPRINGSPIRIT sets. If those extras matter to you, it’s a great value. If you just want a highly-rated, simple set, stick with the SPRINGSPIRIT 4-piece.
Which set fits the thickest mattress?
The CGK Unlimited set fits the thickest mattress. Its fitted sheets have a 16-inch pocket depth, while both SPRINGSPIRIT sets have a 15-inch pocket depth. If your mattress is over 15 inches thick, the CGK set is your only choice among these three.
Which sheet set is the softest?
Based on materials and descriptions, the CGK Unlimited and SPRINGSPIRIT 4-piece sets both use microfiber, which is known for being soft. The SPRINGSPIRIT 5-piece set uses polyester. I’d lean towards the microfiber sets for that silky-soft feel, with the CGK set having a massive number of positive reviews specifically mentioning its softness.
Do I need two separate fitted sheets for an adjustable bed?
Not necessarily. Many adjustable beds work perfectly well with a split-head design like the SPRINGSPIRIT 4-piece set. Two separate sheets, like in the 5-piece set, provide the most independent movement, but they can also be slightly more fiddly to put on. For most people, a split-head sheet is more than sufficient.
Which set has the best color selection?
The CGK Unlimited set wins by a landslide. It offers over 40 different color and pattern options. The SPRINGSPIRIT 4-piece set has about 3 colors, and the 5-piece set only comes in grey. If matching your bedroom decor is important, CGK is the clear choice.
My Final Verdict
After comparing all the specs and thousands of reviews, my clear winner is the SPRINGSPIRIT 4-Piece Split Top King Set. It has the highest customer rating at 4.5 stars from over 680 buyers, and its simple split-head fitted sheet design is both effective and easy to use. The CGK Unlimited 7-piece set is the runner-up, and it’s the best choice if you absolutely need four pillowcases or have a mattress thicker than 15 inches.
If you’re still on the fence, let this decide: choose the SPRINGSPIRIT 4-piece for proven reliability and a great rating. Only go for the CGK set if the extra pillowcases and deeper pockets are must-haves for your specific bed.
Best Overall: SPRINGSPIRIT 4-Piece Set
- 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...
This is the set I recommend for most people. It’s the highest-rated, simplest to use, and comes with a lifetime guarantee for peace of mind.
Runner-Up: CGK Unlimited 7-Piece Set
- 7 PIECE BED SHEET SET: 4 pillow cases, 1 flat sheet, and 2 fitted sheets. Flat...
- DEEP POCKETS/ EASY FIT: They fit mattresses up to around 16 inches deep. If your...
- FEEL THE DIFFERENCE: If you're looking for very soft sheets, you’ve found...
Choose this if you want maximum value with four pillowcases and a 16-inch pocket depth. It’s perfect for couples with thick mattresses who love color options.
Best for Separate Sheets: SPRINGSPIRIT 5-Piece Set
- Elegant Comfort Split King-Size Dimensions - Flat sheet 108" x 102", 2 Fitted...
- ULTRA SOFT SHEETS: Our proprietary hydro-brushed fabric is ultra-soft...
- Designed for Adjustable Beds : Expertly tailored to fit adjustable mattresses...
This is only for you if you are certain you want two completely separate fitted sheets for your adjustable bed. It’s a more niche design.
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