A chilly Michigan fall weekend at a state park is when I stop trusting catalog thickness labels and pull the live Amazon listing first.
Lost Horizon Air & Foam Camping Mattress (ASIN B09XLHQTXY) is a Single Brown self-inflating sleeping pad with 4.5 in thickness, 80"L x 28"W surface, R-value 13, adjustable air and foam firmness, pump sack (title), carry bag, and model LH-SINGLE (July 2026 Amazon check).
Amazon lists 9 lb item weight, 220 lb capacity, self-inflating twist valve, OEKO-TEX STANDARD 100 certification, 1-year warranty, Amazon's Choice, and ~4.4 stars. Catalog price near ~$129.99; listing showed no featured offer at fetch. Verify live price.
Related concepts: R-value vs bag rating, self-inflating vs pure inflatable noise. See how to pick camping gear when you match pad insulation to forecast.
Catalog note: Amazon title matches our plan keyword for this ASIN. Confirm Single / Brown / B09XLHQTXY before checkout; Lost Horizon sells Full, Slim Single, and truck-bed sizes on separate listings.
Calvin Reese's Verdict
Bottom Line
Lost Horizon B09XLHQTXY fits drive-up campers who want home-like 4.5 in thickness, R13 cold-ground insulation, and quiet air+foam support without squeaky all-air beds.
Amazon explicitly says this pad is not recommended for backpacking at 9 lb. Treat it as car-camp or short-walk gear.
I'd pair it with our best sleeping pads review and sleeping pad guide before you assume R13 replaces a proper bag on freezing nights.
Best For
- Car campers who unload gear steps from the parking spot.
- Cold-season drive-up trips when R13 beats thin summer inflatables.
- Side sleepers who want adjustable firmness from the air+foam blend.
- Quiet sleepers tired of noisy all-air mattresses shifting at night.
- Shoppers comparing our best camping mattresses of 2024 review first.
Skip If
- You backpack multi-day miles where 9 lb fails your weight budget.
- You weigh over 220 lb on the Single SKU capacity limit.
- You need fast deflate and roll without patience or an optional electric pump.
- You want queen-width car-mattress spread; 28 in width is solo cut.
Pros
- Verified 4.5 in Single SKU. Amazon maps B09XLHQTXY to Single / Brown / LH-SINGLE with 80 x 28 x 4.5 in dimensions.
- R-value 13 insulation. Listing claims four-season cold-ground performance above many trail pads.
- Adjustable air+foam firmness. Twist valve lets you tune softness vs support beyond single-material foam.
- Quiet stable surface. Air+foam build reduces squeaks common on thin all-air beds.
- Self-inflating setup. Open the valve and let foam expand; pump sack in title aids top-off inflation.
- OEKO-TEX STANDARD 100 + 1-year warranty. Certification SH025 273629 and brand support listed on Amazon.
Cons
- 9 lb packed weight. Spec table lists 9 Pounds; Amazon says not recommended for backpacking.
- Slow deflation and roll-up. Listing warns deflation takes patience; optional electric pump sold separately.
- 220 lb capacity ceiling. Single SKU maxes at 220 lb; heavier sleepers need a different size listing.
- No featured offer at fetch. July 2026 Amazon showed no featured offer; verify seller and live price.
- 28 in width. Solo cut may feel tight for broad shoulders vs wider car mattresses.
- 6.5 lb foam vs 9 lb total. Bullets cite 6.5-pound foam filling while spec table shows 9 lb total pad weight.
Get the Full Picture
Calvin Reese's Opinion
I'd load B09XLHQTXY for a fall car-camp near Detroit when my tent is thirty feet from the trunk and I want mattress-thick comfort without running a separate air pump at midnight.
I've skipped it on backpacking loops where every pound matters. 9 lb and a bulky roll belong in a cargo bin, not on shoulder straps.
We verify listings before publish, not spreadsheet copy alone. I always confirm Single, Brown, and B09XLHQTXY on my phone because Lost Horizon sells Slim Single, Full, and truck sizes on other ASINs.
Campers often blame the bag when the real gap was a thin summer pad on frozen ground. Stack sleep gear using car camping tips and how to sleep comfortably while camping before you trust any R13 sticker alone.
Amazon Reviews
- Praise: thick comfort, warm on cold ground, quiet surface, easy self-inflate start, stable side sleeping.
- Gripes: heavy to carry, slow deflation, awkward repack, width tight for larger frames, pump sack learning curve.
Reddit Reviews
- r/campinggear threads favor thick self-inflating pads for car camps and festival basecamps.
- r/Ultralight rejects 9 lb pads; points trail hikers toward sub-2 lb inflatables from our best sleeping pads review.
Overview
Specs at a Glance
| Spec | Value |
|---|---|
| Product | Lost Horizon Air & Foam Camping Mattress |
| ASIN | B09XLHQTXY |
| Size / color | Single / Brown |
| Model | LH-SINGLE (LHCM) |
| Dimensions | 80"L x 28"W x 4.5"Th |
| Item weight | 9 lb (spec table) |
| Foam fill (listed) | 6.5 lb (Amazon bullet) |
| R-value | 13 |
| Weight capacity | 220 lb |
| Construction | Self-inflating air + foam, adjustable firmness |
| Included | Carry bag; pump sack in product title |
| Certification | OEKO-TEX STANDARD 100 (SH025 273629) |
| Warranty | 1 year |
| Price | ~$129.99 catalog (July 2026; verify live) |
| Rating | ~4.4 stars (catalog; verify live) |
| Best use | Car camping, drive-up tent sleep |
See camping 101 choosing a tent for floor space when a 4.5 in pad eats headroom in low-profile domes.
How This Pad Compares (Prose Only)
vs Therm-a-Rest Basecamp self-inflating: Therm-a-Rest wins brand field history and lighter trail-oriented options. Lost Horizon wins when you want 4.5 in loft and R13 at a mid-tier Amazon price.
vs Ultralight inflatable trail pads: UL inflatables win ounces and packed volume. Lost Horizon wins mattress feel and cold-ground insulation for parking-lot camps.
vs Lost Horizon Slim Single sibling: Slim cuts thickness to 3 in and weight to 5 lb per brand size chart on the listing. B09XLHQTXY wins max thickness and R13; Slim wins trunk space.
Choose B09XLHQTXY if: verified Single car-camp pad with 4.5 in comfort and R13. Choose Slim Single if: you still car camp but want less bulk. Choose UL inflatable if: miles matter more than mattress height.
Setup Checklist
- Confirm Single / Brown / B09XLHQTXY on Amazon before checkout.
- Unroll at home, open the self-inflate valve, and let foam expand fully.
- Top off with the pump sack from the box; practice before trip day.
- Plan 10–15 minutes for slow deflation; budget optional electric pump if you hate waiting.
- Pair with a bag rated for forecast; pad R13 does not replace loft above you.
- REI sleeping pad comfort tips cover R-value pairing and ground cold loss.
Final Thoughts
Buy B09XLHQTXY for verified 4.5 in Single comfort, R13 insulation, and quiet air+foam support on drive-up camps where 9 lb stays in the car.
Skip for backpacking, over-220 lb sleepers on the Single SKU, or anyone who needs fast pack-down without an optional pump.
Match the live Amazon title to Lost Horizon Single, confirm no featured offer status, and read the not recommended for backpacking bullet before you strap it to a pack.
FAQ
What is the Lost Horizon B09XLHQTXY sleeping pad?
Lost Horizon B09XLHQTXY is a Single Brown self-inflating air and foam camping mattress with 4.5 in thickness, 80 x 28 in surface, R-value 13, and model LH-SINGLE (July 2026 Amazon check).
What are the dimensions of the Lost Horizon 4.5 inch Single pad?
Amazon lists 80"L x 28"W x 4.5"Th with Single size and Brown color on B09XLHQTXY.
What R-value does the Lost Horizon air and foam pad have?
Amazon lists R-value 13 for four-season insulation. Pair it with an appropriate sleeping bag; pad R-value alone does not cover top-side heat loss.
How much does the Lost Horizon Single sleeping pad weigh?
The spec table lists 9 Pounds item weight. Amazon bullets also cite 6.5-pound foam filling inside the pad.
Is the Lost Horizon 4.5 inch pad good for backpacking?
No. Amazon states this pad is not recommended for backpacking given bulk and 9 lb weight. Use it for car camping and short walks from the vehicle.
Does the Lost Horizon pad include a pump sack?
The Amazon product title includes with Pump Sack. The spec table lists Carry Bag under included components. Verify contents on the live listing before purchase.
What is the weight limit on Lost Horizon Single?
Amazon lists 220 Pounds maximum capacity on B09XLHQTXY. Heavier sleepers should check Full or other Lost Horizon size listings.