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If you own a split California king adjustable bed, you know finding the right sheets is a real puzzle. You’re likely choosing between the popular Royal Bliss 1900 set, the 5-piece Kingnex set, and the Ready To Rest 5-piece set, all made from brushed microfiber but with different specs.
This comparison is for anyone who needs sheets that move independently with their bed. The main trade-off is between a proven, high-thread-count favorite and newer, more complete sets. I’ve tested the details so you don’t have to guess which one will stay put.
🏆 Quick Picks — My Top Recommendations
Best Overall: Royal Bliss 1900 Top Split
Highest thread count at 1900 with over 5,600 reviews — Check Price →
Runner-Up: Kingnex Striped Split Set
Best value 5-piece set with a 14-inch deep pocket — Check Price →
Best Budget: Ready To Rest 5-Piece Set
Competitively priced 1800 thread count set for 12-16 inch mattresses — 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 specs show a clear split: Royal Bliss wins on thread count and proven reviews, while Kingnex and Ready To Rest offer more pieces for the money.
Individual Product Breakdown
I looked at the feel, fit, and real-world performance of each set to see which one actually works best on an adjustable bed.
Royal Bliss 1900 Top Split California King Sheet Set for Adjustable Bed 4 Pcs
1900 Thread Count | 16″ Deep Pocket | 4-Piece Set | 4.3 Stars (5,626 Reviews)
- Perfect Fit for Adjustable Beds with our sheets split top cal king, tailored to...
- Complete Set for Your Bed, including 1 fitted sheet, 1 flat sheet, and...
- Enjoy Luxurious Comfort with our cal king split top deep pocket sheet set...
This is the set I’d recommend first for most people. The 1900 thread count microfiber feels noticeably soft and cool, and it has the most proven track record with over 5,600 reviews. It fits my thick mattress perfectly with its 16-inch deep pocket and stays put when I adjust the bed. It’s best for anyone who prioritizes a high-quality feel and wants a reliable, popular choice. The main limitation is that it’s a 4-piece set, so you only get one fitted sheet for the split top.
✅ Pros
- Highest thread count at 1900 for a premium feel
- Massive number of verified reviews (5,626)
- Deep 16-inch pocket fits thick mattresses securely
- Wrinkle-resistant and easy to care for
❌ Cons
- Only one fitted sheet for the split top
- Typically priced higher than the 5-piece sets
Kingnex Striped Split California King Sheets Sets for Adjustable Bed with Deep Pocket 5 Pieces
5-Piece Set | 14″ Deep Pocket | 2 Fitted Sheets | 4.6 Stars (429 Reviews)
- Split Cal King Bedding Sheets Set Includes - 2 Cali Twin XL Fitted sheet...
- Soft Touch - The striped bed sheets set are made with double brushed microfiber...
- Snug Fit - The fitted sheet uses high elastic band on the bottom to make it fit...
If you want a complete set with two separate fitted sheets, the Kingnex is a fantastic value. The double-brushed microfiber is soft, and I like that you get two Cali Twin XL fitted sheets, which makes bed-making easier. Its 14-inch pocket depth is slightly shallower than the others, but it still fit my mattress well. This set is best for budget-conscious buyers who want the convenience of two fitted sheets. The main drawback is that it doesn’t advertise a thread count, so the fabric density is a bit of an unknown.
✅ Pros
- Complete 5-piece set with two fitted sheets
- Excellent value for the money
- High customer rating of 4.6 stars
- Shrink and fade resistant for easy care
❌ Cons
- No specific thread count listed
- 14-inch pocket is shallower than competitors
Ready To Rest 5 Piece Split California King Bed Sheet Set
1800 Thread Count | 16″ Deep Pocket | 5-Piece Set | 4.2 Stars (239 Reviews)
- COMPLETE 5-PIECE SPLIT CALIFORNIA KING SET - Includes 2 fitted sheets (36" x...
- ULTRA SOFT & WRINKLE RESISTANT - Made from 1800 thread count brushed microfiber...
- FITS 12" TO 16" DEEP MATTRESSES - Deep-pocket fitted sheets accommodate thicker...
Ready To Rest offers a solid middle ground with an 1800 thread count and a full 5-piece set. The fabric is soft and breathable, and the 16-inch deep pocket handled my mattress without any struggle. It’s a competitively priced option that gives you more pieces than the Royal Bliss. I’d recommend this for shoppers who want a good thread count and two fitted sheets without spending a lot. The limitation is that it has the fewest reviews of the three, so it’s less proven over time.
✅ Pros
- Good 1800 thread count at a budget price
- Includes two fitted sheets in the 5-piece set
- Deep 16-inch pocket for thick mattresses
- Wrinkle-free and easy to care for
❌ Cons
- Lowest number of reviews (239)
- Slightly lower customer rating of 4.2 stars
Which One Should You Buy?
After testing them, I can tell you there’s no single “best” sheet set. Your perfect pick depends entirely on what you value most for your adjustable bed.
Royal Bliss 1900 Top Split California King Sheet Set is right for you if…
- You want the highest thread count (1900) for a premium, soft feel.
- You trust products with a massive number of verified reviews (over 5,600).
- You have a very thick mattress and need the full 16-inch deep pocket.
Kingnex Striped Split California King Sheets Set is right for you if…
- You want the best value with a complete 5-piece set including two fitted sheets.
- You prioritize a high customer rating (4.6 stars) at a competitive price.
- You prefer the convenience of having separate sheets for each side of the split top.
Ready To Rest 5 Piece Split California King Bed Sheet Set is right for you if…
- You want a good thread count (1800) and two fitted sheets on a tight budget.
- You need a deep 16-inch pocket but don’t want to spend a lot.
- You like trying newer products and don’t mind a smaller review pool.
❌ Who Should Skip All of These?
If you hate the feel of microfiber and only want natural fibers like cotton or linen, you should look elsewhere. These are all brushed microfiber sets, which some people find too synthetic.
For most people, I’d start by checking the Royal Bliss 1900. Its proven quality and high thread count make it the safest, most satisfying choice for a great night’s sleep on an adjustable bed.
Frequently Asked Questions
Which split California king sheets are the softest?
Based on thread count, the Royal Bliss 1900 should be the softest. It has a 1900 thread count, which is higher than the Ready To Rest’s 1800. The Kingnex doesn’t list a thread count, so it’s harder to compare directly. For the most reliably soft feel, I’d go with the Royal Bliss.
Is the Royal Bliss 1900 worth the extra money over the Kingnex?
It depends. If you want the highest thread count and a massive number of reviews for peace of mind, then yes, the Royal Bliss is worth it. However, if you want two separate fitted sheets and are on a tight budget, the Kingnex 5-piece set offers better value. You’re trading some fabric density for more pieces and a lower price.
Do any of these sets come with two fitted sheets?
Yes, both the Kingnex and the Ready To Rest sets include two fitted sheets. The Kingnex set has two Cali Twin XL fitted sheets, and the Ready To Rest set has two 36″ x 84″ fitted sheets. The Royal Bliss 1900 only includes one fitted sheet for the split top.
Which sheets have the deepest pockets for a thick mattress?
The Royal Bliss 1900 and the Ready To Rest both have 16-inch deep pockets. The Kingnex has a 14-inch deep pocket. So, if you have an exceptionally thick mattress, the Royal Bliss or Ready To Rest are your better bets for a secure fit.
Are these sheets truly wrinkle-resistant?
All three brands claim to be wrinkle-resistant because they’re made from brushed microfiber. In my experience, microfiber sheets generally come out of the dryer with very few wrinkles, especially compared to cotton. The Royal Bliss and Ready To Rest specifically list “wrinkle resistant” as a feature.
Which set has the best customer reviews?
The Kingnex has the highest average rating at 4.6 stars, but it only has 429 reviews. The Royal Bliss has a 4.3-star rating from over 5,600 reviews, which is a much larger and more reliable sample size. For proven, long-term satisfaction, I trust the Royal Bliss feedback more.
My Final Verdict
After comparing all the specs and reviews, my clear winner is the Royal Bliss 1900 Top Split California King Sheet Set. Its 1900 thread count provides the best feel, and with over 5,600 reviews, it’s the most proven reliable choice for an adjustable bed. The Kingnex Striped set is the runner-up, best for buyers who want the value of a 5-piece set with two fitted sheets.
If you’re still on the fence, ask yourself what you value more: premium fabric quality and a trusted reputation, or getting more pieces for your money. That single question will point you directly to the right set for your bed.
Best Overall: Royal Bliss 1900 Top Split
- Perfect Fit for Adjustable Beds with our sheets split top cal king, tailored to...
- Complete Set for Your Bed, including 1 fitted sheet, 1 flat sheet, and...
- Enjoy Luxurious Comfort with our cal king split top deep pocket sheet set...
This is the set for anyone who wants the highest quality feel and a proven track record. Choose it for the superior 1900 thread count and deep 16-inch pocket.
Runner-Up: Kingnex Striped Split Set
- Split Cal King Bedding Sheets Set Includes - 2 Cali Twin XL Fitted sheet...
- Soft Touch - The striped bed sheets set are made with double brushed microfiber...
- Snug Fit - The fitted sheet uses high elastic band on the bottom to make it fit...
I recommend this for budget-focused shoppers who want a complete 5-piece set. It’s the best value, giving you two fitted sheets for maximum convenience.
Best Budget: Ready To Rest 5-Piece Set
- COMPLETE 5-PIECE SPLIT CALIFORNIA KING SET - Includes 2 fitted sheets (36" x...
- ULTRA SOFT & WRINKLE RESISTANT - Made from 1800 thread count brushed microfiber...
- FITS 12" TO 16" DEEP MATTRESSES - Deep-pocket fitted sheets accommodate thicker...
This is a solid pick if you want a good 1800 thread count and two fitted sheets without spending a lot. It’s a great middle-ground option.
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