Built for Kenworth Sleeper Cabs
Kenworth Semi Truck Mattresses
The Kenworth T680's 76″ sleeper and the W900's Studio sleeper both take a full 42x80 mattress — the same size as most modern wide-cab sleepers. Every SleeperKing model — Classic, Serenity and Premium — is available in this size, ships free, and comes with a 120-night guarantee.
Shop Kenworth Mattresses1,000 comfort coils available · Made in the USA · Free shipping
Semi Truck Mattress Sizes for Kenworth Models
Both major Kenworth sleeper configurations take the widest of the three standard semi truck mattress sizes.
| Model | Sleeper Type | Mattress Size | Max Thickness |
|---|---|---|---|
| Kenworth T680 | 76″ sleeper | 42x80 | 8″ – 12″ |
| Kenworth W900 | Studio sleeper | 42x80 | 8″ – 12″ |
Don’t see your Kenworth configuration?
Cab trim packages and non-standard sleeper builds vary by roughly ±1″. SleeperKing manufactures to order, so an off-spec Kenworth bunk can still get an exact-fit mattress — measure the bare bunk pan and request a custom size if your numbers don’t match the table above.
How to Measure Your Kenworth Sleeper
- Remove the old mattress and measure the bare bunk pan, not the mattress currently sitting on it — compressed foam and worn springs will throw off your numbers.
- Measure width and length at the narrowest points. Subtract about one inch from each so the new mattress drops in without bulging at the edges.
- Check headroom around any overhead storage or bunk curtain track in a T680 76″ sleeper or W900 Studio sleeper.
- Note the trim package. Two T680s or W900s with the same model year can still differ by close to an inch depending on how the cab was optioned.
Which SleeperKing Model Fits Your Kenworth
Classic
Firm support, budget-friendly, 850 coils. The straightforward replacement for a worn-out factory mattress in a T680 or W900 sleeper.
Serenity Best Seller
Max comfort with copper-infused lumbar support, 1,000 coils. The most common pick among Kenworth owner-operators running long OTR miles.
Premium
Dual-sided, flippable, 1,000 coils with cool/warm sides. Built for drivers who run hot or want the option to flip the mattress as it wears.
Shop Kenworth Semi Truck Mattresses
Kenworth Mattress Questions
What size mattress fits a Kenworth T680?
A 42x80 semi truck mattress — 42 inches wide by 80 inches long — fits the T680's 76" sleeper. That's the widest of the three standard semi truck mattress sizes.
Does the Kenworth W900 take the same mattress as the T680?
Yes. Both the W900 Studio sleeper and the T680 76" sleeper use the same 42x80 mattress size. Fit differs by cab layout, not by mattress width or length.
How thick can a Kenworth sleeper mattress be?
8" to 12", depending on the SleeperKing model and any headroom constraints from overhead storage or a bunk curtain.
What if my Kenworth bunk doesn't match 42x80?
Trim packages and non-standard builds can vary by about an inch. Measure the bare bunk pan first — if it's off-spec, SleeperKing builds to your exact dimensions.
Is there a guarantee on Kenworth-fit mattresses?
Yes — the same 120-night guarantee that applies to every SleeperKing mattress, standard size or custom.
