10 Best Affordable King Mattress of August 2025

• 8 inch hybrid mattress combine hypallergenic memory foam with the traditional support of an innerspring mattress for a medium-firm feel perfect for kids rooms, guest beds, or an affordable low-profile option
• A plush layer of memory foam helps align the spine to minimize pressure points for increased comfort
• Finished with a cozy knit cover, this mattress is compressed as a bed in a box for convenient delivery and setup
• Available in a medium firm 8 inch profile, a medium 10 inch profile, or a plush 12 inch profile that also features gel infusions and individually encased coils
• Packaging process may leave small brown flecks called carbons in the mattress packaging; These carbons are harmless pieces of plastic and will not stick to your mattress; 10 year limited warranty

Linenspa

• 5 inch thick memory foam mattress with firm support
• 1 inch comfort layer made of gel-infused memory foam for pressure point relief
• 4 inches of high density base foam for proper back support
• Mattress is rolled, compressed and boxed for convenient shipping and setup
• Backed by a 10-year warranty against manufacturer defects

Linenspa

• THE RIGHT COMBINATION - Our special recipe for rejuvenating rest? Refreshing green tea and moisture-absorbing Activ charcoal infused into pressure-relieving memory foam that cradles your shape so you awake free of aches and pains and fresh as a daisy
• PRESSURE-RELIEVING FOAMS - 3 inches conforming memory foam, 2 inches soft, airflow enhancing comfort foam, and 7 inches durable, high density base support foam; ideal for side sleepers and petite to average weight sleepers
• CERTIPUR US CERTIFIED - Highest quality foam is CertiPUR US Certified for durability, performance, and content
• EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours
• Worry-free 10 year limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 pounds

Zinus

• Solve your sleep quality -upgrade your current foam mattress sweet night King mattress designed with 3 layers of zone system. This King size mattress gives you medium firm feeling keeping body properly aligned pressure relief & heat dissipation. Best choice for all sleeping positions who want to indulge in a supportive yet cushy sleep environment Helps those suffer from back pain tossing & turning partner’s movement
• Sleep cooler - This King mattress is made from gel memory Foam which provides cradling support helping to dissipate body heat designed to pull heat from your body our breathable foam has millions of open cells acting as airway chambers. They allow maximum airflow so the foam breathes for unbeatable temperature regulation
• Comfort & undisturbed sleep - King size mattress is made of 3”gel infused memory foam for slowly adjusting to your body weight and temperature for a comfort cooling feeling 3 5”unique air flow foam design provides adjust combination of cushioning comfort and enhanced support 5 5”high-density foam provides edge support resists sagging & rolling-off no matter when you sleep alone or next to partner. The mattress is the perfect blend of comfort and motion separation for an undisturbed sleep
• Healthy & plush concept - Our sweet night King mattress is made of high density foam without any harmful substances like formaldehyde Mercury and other heavy metals. Don't be alarmed if you experience slight odor It is natural foam odor which is harmless and will dissipate in few days
• 10 years No risk - as a brand owner customer satisfaction is our aim our King size mattress come with 10 years quality. If for any reason you are unsatisfied contact US at any time for support over 96% of our customers keep their plush mattress and recommend to others

Sweetnight

• King size bed in a box: For supportive, dreamy sleeping, this mattress brings it home with comfortable layers; Plus, it comes in a box, so it's easier than ever to get a better night's rest
• Hybrid mattress: Mattress is designed with gel memory foam, upholstery grade comfort support foam, and 360 individual power packed wrapped coils for maximum lumbar support. Quilt foam gives you that soft, cozy comfort you crave
• Maintenance free: Made of hypoallergenic material to keep out dust mites, pollen, mold and pet dander—perfect for kids or adults who suffer from allergies.2 perimeter rows of 9 inch 13-gauge pocketed coils
• King size: Measures 76" W x 79.5" D x 12" H and is compatible with most king bed frames
• Ready for instant enjoyment: Arrives in a box. Simply unbox, cut the protective wrap, unroll and watch the mattress expand. Mattress is safe to sleep on immediately but can take 72+ hours for any risidual odors from packaging to dissipate and for mattress to completely expand based on ambient room temperature, humidity, air pressure & ventilation.

Signature Design by Ashley

• Our bed is comprised of cool i-gel memory foam which provides additional body conforming comfort while helping regulate your Overall sleep temperature
• Our 7.5 inch dura Spring base promotes proper Back support and undisturbed sleep combining continuous Coil design with head to toe Coil Construction
• Bestselling most affordable mattress
• 10 year limited Manufacture warranty

Olee Sleep

• The LUCID Mattress Elevator Base is an affordable alternative for an adjustable base
• Sleeping with your head elevated can naturally help reduce acid reflux and improve breathing
• Premium CertiPUR-Certified foam is durable and proven to be safe for the whole family
• The King configuration is comprised of two Twin XL pads that can be used on two separate Twin XL mattresses; Queen comes in two separate pads for conveinent shipping
• Machine washable cover sold separately

LUCID

• Go minimalist - Less is more, especially with this modern and boldly outlined foundation that lends both strength and understated sophistication to your bedroom - two qualities that never go out of style
• No box spring needed - Reliable metal slats are designed to support and extend the life of your latex, memory foam or spring mattress without the need for a box spring; for twin and full sizes, slats are spaced 5.5 to 5.9 inches apart
• Underbed clearance - A 14 inch platform features 12 inches of underbed space perfect for storing extra odds and ends
• Easy assembly - Metal slats are secured with our bolt-free Quick Lock assembly system to save you time and hassle; all parts, tools and instructions are shipped straight to your door in one efficiently packed box; set-up takes less than hour with a friend’s help
• Worry-free 5 year limited warranty included; mattress sold separately; twin size supports a maximum weight capacity of 250 pounds, while all other sizes can support up to 500 pounds

Zinus

• 2 inches of gel infused memory foam combined 3 inches of gel infused foam draws heat away from your body for a more comfortable Night's sleep
• 76 inch W x 80 inch L x 12 inch H
• 7 inches of conforming high density base foam provides surrounding support and responsive relief that helps evenly distribute pressure points in any sleeping position
• Luxurious stretch knit quilted fiber cover
• Medium plush feel and adjustable base friendly; Naturally antimicrobial
• High quality memory foam Conforms to your body while the Cool Gel regulates temperature; memory foam is naturally hypoallergenic and resistant to allergens, Mold, bacteria, and dust mites and meets CertiPUR US Program standards for performance, emissions, and durability
• Mattress ships compressed, rolled and shipped in a box conveniently delivered to your door for easy set up; frame/foundation/base not included

Vibe

• Base: First-ever folding hinge makes shipping more affordable; easy assembly takes less than 5 minutes from box to bed; no expert assembly needed
• Base: Independent head incline: 0 - 60 degrees, foot incline 0 - 45 degrees; dual USB charging stations on both sides of bed base
• 2 Twin XL bases make a King, Dimensions Mattress Twin XL: 39" x 80" x 10"
• Mattress: Memory foam infused with bamboo charcoal and aloe vera eliminates odors, wicks away moisture, and cradles your body while you sleep
• Mattress: Individually-wrapped, high-quality steel coils provide soft and gentle comfort with a well-balanced layer of support
• 750-pound weight capacity and backed by a 10-year warranty against manufacturer defects

LUCID