Size: King  • Comfort level: Firm
Construction: Hybrid mattress with foam cushioning and wrapped coils
Comfort layer: High-density convoluted foam for cushioning and airflow
Firmness layer: High-density cushion-firm foam
Support: Power-packed wrapped coils with Ashley Edge reinforcement
Additional support: Stability pad beneath the comfort system
Compatibility: Adjustable-base compatible
Certification: CertiPUR-US® certified foam
Foundation/box spring: Sold separately
Setup: Ships compressed in a box; allow up to 48 hours for expansion
Warranty: 10-year non-prorated manufacturer warranty
Why choose the Ashley Sleep 13-Inch Hybrid Hot Buy King Mattress M20741?
The Ashley 13-Inch Hybrid Hot Buy M20741 combines a firm sleeping surface with the generous width of a King mattress, making it useful for couples who want more personal space without choosing an all-foam design. Its high-density convoluted foam creates a cushioned surface with a textured structure designed to encourage airflow, while cushion-firm foam provides a more resistant feel. Beneath the foam, individually wrapped coils support the mattress and help limit movement between partners, with Ashley Edge reinforcement providing additional perimeter support. At 76 inches wide, the King offers 16 more inches of sleeping width than a Queen, although it requires additional bedroom space. The 13-inch profile also makes finished bed height and fitted-sheet depth important considerations. Adjustable-base compatibility adds flexibility when selecting a foundation. A California King version is also available; confirm the size-specific SKU before ordering.
Specificationsâ–¶
Specifications Details
Brand Name
Sierra Sleep® by Ashley
Material
Fabric
Lifestyle
Traditional
Bed Size
King
Assembly
Assembly Not Required
Product Detailsâ–¶
Comfort level: firm
High-density convoluted foam
High-density cushion firm foam
Support pad for stability
Power-packed wrapped coil unit with Ashley Edge to minimize motion transfer and increase support
10-year non-prorated warranty
CertiPUR-US® certified
Adjustable base compatible
Foundation/box spring available, sold separately
State recycling fee may apply
Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
Availabilityâ–¶
Available Configurations
SKU M20741 — King Dimensions: 79.5''W x 76''D x 13''H | Weight: 94.0 lbs▶
This option is a King Mattress.
SKU M20751 — California King Dimensions: 83.5''W x 72''D x 13''H | Weight: 95.0 lbs▶
This option is a California King Mattress.
Is the Ashley 13-Inch Hybrid Hot Buy M20741 King mattress worth the extra bedroom space compared with a Queen?
The Ashley M20741 measures 76 inches wide and 79.5 inches long, giving two sleepers approximately 38 inches of width each. That is 8 inches more per person than a Queen mattress, which can reduce crowding when couples change positions or share space with pets. However, a King requires 16 additional inches of bedroom width compared with a Queen, plus sufficient clearance around the bed frame. When weighing the extra sleeping space of a King against the smaller footprint of a Queen, measure the complete bed frame and allow roughly 30–36 inches of walking clearance where possible. The larger mattress provides more personal space but does not automatically eliminate partner disturbance.
How does the Ashley Hybrid Hot Buy M20741 combine firm support, airflow and reduced partner movement?
Ashley rates the M20741 as firm, with high-density cushion-firm foam over a power-packed wrapped-coil system. Its convoluted foam has a textured shape designed to encourage airflow while adding surface cushioning. The independently responding coils provide underlying support and help limit motion transfer, while Ashley Edge reinforcement supports the perimeter. Unlike a traditional interconnected spring system, wrapped coils are intended to respond more independently as sleepers move. Because movement can travel through both mattress springs and the supporting bed frame, a stable foundation remains important for couples. Neither the airflow design nor the wrapped coils guarantees cooling or motion-free sleep.
Can the 13-inch Ashley Hybrid Hot Buy King M20741 use an adjustable base, and what should I prepare for delivery?
Yes. Ashley lists the M20741 as adjustable-base compatible. Its 13-inch mattress thickness would produce an approximate sleeping-surface height of 25 inches on a support surface 12 inches above the floor, before compression. Since the combined height of the mattress and foundation determines everyday bed access, measure your existing setup and choose King fitted sheets with adequate pocket depth. The mattress arrives compressed in a box, but its finished King dimensions require a compatible 76-inch-wide support system. Allow up to 48 hours for full expansion after opening. A foundation or box spring is sold separately, and Ashley's support and warranty requirements should be checked before ordering.
Looking for the Ashley Sleep 13-Inch Hybrid Hot Buy King Mattress M20741? VBU Furniture offers local pickup, Chicago and Illinois delivery, and nationwide shipping across the contiguous 48 states. Contact us to confirm availability and discuss delivery or setup options.
