Best King-Sized Mattresses of 2024: The Plug’s Review for Every Sleep Style
Looking for the best king-sized mattress for your sleep style? Whether you're a side sleeper, back sleeper, stomach sleeper, or a midnight flip-flopper, I’ve broken down the top 3 best-selling king mattresses in 2024 with honest opinions and real-world advice.
🥇 Saatva Classic — Best King Mattress for Back and Stomach Sleepers
If a luxury hotel bed and a chiropractor had a baby, you'd get the Saatva Classic. This hybrid innerspring mattress delivers next-level support with a plush Euro pillow top. Available in three firmness levels (Plush Soft, Luxury Firm, and Firm), it’s designed to match your body and your preferred sleep position.
What makes it great:
Excellent support for back and stomach sleepers
Zoned lumbar support = no more waking up feeling like a pretzel
Sleeps cool thanks to dual coil layers and breathable organic cotton
White-glove delivery (yes, they set it up for you)
But also:
It’s heavy. Like “don’t DIY this move” heavy.
Not ideal for foam lovers who want to sink into softness
Who it’s for:
Sleepers who want structure, support, and a touch of that "I-paid-for-comfort" energy. Ideal if you love the feeling of a traditional mattress but want modern upgrades. Also great for heavier folks who need more firmness without losing comfort.
🥈 Tempur-Pedic TEMPUR-ProAdapt — Best King Mattress for Side Sleepers and Pain Relief
Tempur-Pedic is the GOAT of memory foam, and the TEMPUR-ProAdapt proves it. This mattress is the ultimate in pressure relief and contouring. It comes in soft, medium, and firm (with or without coils) so you can pick your flavor of “hold me while I sleep.”
Why it’s worth the splurge:
Cradles pressure points like your shoulders and hips
Elite motion isolation, partner tossing won’t bother you
Amazing for side sleepers and people with back or joint pain
NASA-approved foam (yes, that NASA)
But keep in mind:
Sleeps warmer than hybrids
Pricey, but you get what you pay for
It’s heavy and not very breathable
Who it’s for:
Side sleepers, chronic pain sufferers, and anyone who wants to feel like they’re being gently absorbed into sleep. If you hate waking up sore, this one’s a game-changer.
🥉 Casper Original Hybrid — Best King Mattress for Combo Sleepers and Budget Buyers
The Casper Original Hybrid is the all-rounder. Not too soft, not too firm, and made for people who toss, turn, and sleep like a confused rotisserie chicken. With zoned support and breathable foam layers, it strikes a nice balance between comfort and support.
What works:
Zoned support helps align your spine (and saves your back)
Great airflow and temperature control
Budget-friendly price compared to other premium king mattresses
Solid edge support for a hybrid
Drawbacks:
Not as plush or contouring as high-end memory foam
Track record shows edge support could be better for heavier folks
Who it’s for:
Combo sleepers, people who shift positions all night, and folks who want premium features without dropping Tempur money. Also great for guest rooms, your visitors will think you’re spoiling them.
🧠 Final Thoughts from The Plug
Your mattress should match you. It should support your sleep style, your body type, and your lifestyle without compromising on comfort. Whether you want a firm, supportive feel (Saatva), cloud-like contouring (Tempur-Pedic), or something in between (Casper), there’s a king-sized mattress out there with your name on it.
Just remember: sleep is an investment, not an expense. And if you’re spending 1/3 of your life horizontal, might as well make it comfortable, right?
