
NON Sticky Cotton Adjustable Split King
Score: 87/100Slumber Cloud Essential Sheet Set
Score: 82/100Rankings

A high-thread-count split-king sheet set offering exceptional softness, hypoallergenic properties, and robust resistance to wear. The trade-off is a synthetic microfiber feel that may not satisfy purists seeking natural cotton. Best for budget-conscious couples with adjustable split-king beds who prioritize durability and easy care.
Slumber Cloud's Essential Sheet Set combines cotton with NASA-derived Outlast viscose fibers for active cooling, breathable comfort and a secure elastic-with-strap design. The set is heavier, sold final-sale only, and carries a higher price point. Perfect for hot sleepers prioritizing temperature regulation over softness.
| Attribute | ![]() | Slumber Cloud Essential Sheet Set |
|---|---|---|
18 inchesbest | 12 inches | |
1,800best | 300 | |
| ↓ lower better | — | 5.07 lbbest |
5 piecesbest | 4 pieces |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | Slumber Cloud Essential Sheet Set |
|---|---|---|
General(4) | ||
Size (Mattress Fit) | Split King | Twin XL |
Material | 100% Long Staple Cotton | cotton with Outlast viscose |
Certifications | OEKO-TEX | Oeko-Tex Standard 100; Space Technology |
Number of Pieces in Set (pieces) | 5 pieces | 4 pieces |
Design(2) | ||
Pocket Depth (inches) | 18 inches | 12 inches |
Thread Count | 1800 | 300 |

Products in the top-left offer the best value (high score, low price).

Editors and professional bedding reviewers acknowledge the set's practical split-top design and high thread count as strong points for adjustable split-king beds, but they caution that microfiber cannot fully replicate the luxurious feel and natural breathability of true Egyptian cotton. The percale weave and hypoallergenic properties are seen as solid functional benefits, while the synthetic material may limit its appeal to premium-seeking consumers.
Everyday users generally praise the sheet's secure fit on adjustable beds, its softness after washes, and the low-maintenance care instructions. Recurring themes include appreciation for deep pockets and wrinkle-free performance, alongside complaints about a slightly synthetic feel and occasional slipping when mattresses are very thick.
“stays in place when bed adjusts”

“soft and breathable after washes”

“nice cooling feeling”

Professional reviewers praise the Essential Sheet Set for its NASA‑derived temperature‑regulating technology, citing significant reductions in night sweats and measurable improvements in deep sleep. The stay‑in‑place design and breathable cotton blend are also highlighted as strong points, while the final‑sale status is noted as a drawback for risk‑averse shoppers.
Everyday users consistently commend the cooling performance, comfort for hot sleepers, and the ability for couples with opposite temperature preferences to sleep together without disturbance.