Tempur-Pedic King Size, Explained: Your 2025 Dimensions Guide

If you’re weighing a Tempur-Pedic king, let’s make the numbers easy. I’ll break down the exact sizes, thickness by model, and how it all fits in real rooms. Here’s the thing: the dimensions of tempur pedic king mattress options are standard across the brand, but the height and feel change a lot by model. I’ll translate that into what actually matters so you don’t buy the wrong sheets or a bed that bullies your bedroom.

King vs. Split King vs. California King (the quick sizes)

A standard King measures 76 x 80 inches, which is about 193 x 203 cm. That’s the classic “wide and roomy” footprint most couples choose. A Split King is the exact same overall size—76 x 80—but it’s made from two Twin XL mattresses, each 38 x 80 inches. If you want independent motion or an adjustable base with separate controls, this is the move. California King shifts the proportions: 72 x 84 inches (about 183 x 213 cm). It’s longer, a touch narrower, and great if you’re tall or your pup sleeps at the foot. When folks ask for the dimensions of tempur pedic king mattress options, this is what they’re really comparing: width vs. length trade-offs.

One tiny nuance most spec sheets don’t say out loud: finished mattresses can vary by about an inch due to materials and quilting. Frames also add bulk, so plan a couple extra inches of floor space beyond the mattress footprint. Nothing dramatic—just helpful to know before you commit.

How thick is a Tempur-Pedic king? Heights by model (2025)

Tempur-Pedic keeps the length and width consistent; height depends on the collection. Here’s the simple version: TEMPUR-Cloud is about 10 inches. TEMPUR-Adapt sits around 11 inches. TEMPUR-ProAdapt is roughly 12 inches. TEMPUR-LuxeAdapt is about 13 inches. In the cooling line, TEMPUR-ProBreeze is typically around 12 inches and TEMPUR-LuxeBreeze around 13 inches. The dimensions of tempur pedic king mattress height matter for sheets and how tall the bed will feel once you add a foundation.

One more practical note: thicker isn’t automatically softer or firmer. Feel comes from the foams and layering, not just extra inches. If you want the comfort breakdowns, I’ve got that in my full Tempur-Pedic lineup review on Consumer’s Best.

Will it fit your room—and the doorway getting there?

A king is spacious, and it needs a spacious room. Most people are happiest with at least 12 x 12 feet for a standard frame, ideally 12 x 14 if you want nightstands and comfortable walkways. Try to keep 24–36 inches of clearance on the sides and at the foot. Remember: frames and headboards can add 2–6 inches to the length or width, so don’t only map the bare mattress footprint. The dimensions of tempur pedic king mattress sizes don’t change, but the furniture around them definitely does.

Getting it into the room is usually fine. Most Tempur-Pedic models ship flat with white-glove delivery (nice perk) and can flex enough to angle through standard 30–36 inch doors and tight turns. Split King makes stairs and hallways way easier. If you order the TEMPUR-Cloud, that one ships in a box, which is even simpler to maneuver. Pro tip: measure the narrowest turn on your route, not just the door width.

Bedding and bases that actually fit

Sheets are straightforward once you know your size. King sheets fit 76 x 80; California King sheets fit 72 x 84. Split King uses two Twin XL fitted sheets (38 x 80 each) plus either a single king top sheet/duvet or two twins if you prefer separate covers. Check pocket depth: for 10–11 inch mattresses, a standard pocket often works; for 12–13 inches (especially with a topper), go deep pocket. That’s where height—the quiet part of the dimensions of tempur pedic king mattress specs—really shows up in daily life.

For foundations, you can go platform, slatted (keep gaps at 3 inches or less), or an adjustable base. Kings need strong center support with legs to the floor. If you’re eyeing Split King, you’ll either use two Twin XL bases or a “synced” adjustable that moves together. I lean adjustable for Tempur-Pedic—pressure relief gets even better when you can tweak head and feet.

Bottom line (so you can hit “Add to Cart” with confidence)

Numbers you can trust: King is 76 x 80, Split King is two Twin XLs, and California King is 72 x 84. Height runs roughly 10 to 13 inches depending on the model—which drives sheet choice and overall bed height. If you want the comfort feels, cooling differences, and value picks, I put the no-spin take in my 2025 Tempur-Pedic review on Consumer’s Best. Believe it or not, picking the right size is the easy part—after that, it’s all about the right feel for your body.