Sleeper sofas, pull-outs, futons and Murphy beds
Sofa Bed Mattress Toppers That Fold Back Into the Frame
A sofa bed mattress topper is the fastest fix for the thin, bar-across-the-back mattress that came with your sleeper sofa. LOUNJ pours gel memory foam in Phoenix, AZ and cuts it to true sofa bed sizes, so a 2 or 3 inch layer adds real cushion and still folds away with the frame in the morning.
- Made in Phoenix, AZ
- 30-Night Happiness Guarantee
- Free shipping, ships in 1 business day
Shop toppers for sleeper sofas and pull-out beds
All Mattress ToppersWhy a sleeper sofa mattress needs a topper
Sleeper sofa mattresses are built to fold, not to sleep on. Most are 4 to 5 inches of low-density foam or a thin innerspring, and the support bar that holds the mechanism sits right under your lower back. After a night on one, guests wake up sore and hosts feel guilty.
A sofa bed mattress topper solves the two problems that matter. First, it puts a continuous layer of gel memory foam between you and the bar, so the ridge disappears under your hips. Second, it adds the pressure relief the original mattress never had. Open-cell gel foam contours to shoulders and hips instead of pushing back, which is why a 2 inch topper on a pull-out often feels better than the couch mattress on its own ever did.
Because the foam is dense but flexible, you do not have to remove it every morning. Fold it with the mattress, close the frame, and it is ready for the next guest.
Pick a thickness that folds: 2 inch vs 3 inch
Thickness is the decision that makes or breaks a pull-out couch mattress topper. Most sleeper mechanisms have about 5 to 6 inches of clearance when folded, and the mattress already takes most of that.
- 2 inch: folds inside almost every sleeper sofa with the mattress still attached. Best for occasional guests and for hiding the bar. See our 2 inch mattress toppers.
- 3 inch: noticeably softer and better for a guest staying a week or a sofa bed you use nightly. Folds into most full-size mechanisms; on tighter queen frames you may need to fold the topper separately and store it under the cushions.
- 4 inch: only if you leave the bed open. It will not close inside a standard sleeper.
When in doubt, open the bed, measure the gap between the mattress top and the underside of the folded deck, and choose the thickness that fits with a half inch to spare.
Sofa bed sizes are not regular bed sizes
This is the part most shoppers miss. A queen sleeper sofa mattress is usually 60 x 72 inches, not the 60 x 80 of a bedroom queen. A full sleeper is typically 52 to 54 x 72. Buy a standard topper and it hangs 8 inches past the foot of the mechanism, bunches when you fold it, and jams the frame.
LOUNJ cuts sofa bed queen 60 x 72 and sofa bed full 54 x 72 as custom pieces, in half inch increments, with a written quote in 1 to 2 business days. If your sleeper is an odd size, measure the mattress at its widest and longest points and send the numbers through our custom mattress topper page. Custom cutting is not an upcharge, you pay for foam and labor either way.
Futons are the exception. Most full futons are a true 54 x 75, so a stock full mattress topper fits without a custom cut.
Futons and Murphy beds
A futon mattress topper has a different job than a pull-out topper. Futon mattresses are cotton or foam batting that packs down over time, so the problem is a firm, lumpy surface rather than a bar. A 2 inch gel foam topper evens it out and still bends at the crease when you fold the futon back to sofa mode. Go to 3 inches if the futon is your primary bed.
Murphy beds are the easiest case. The mattress stays flat and folds up as one unit, so the only constraint is the cabinet depth. Most wall beds accept a mattress plus topper of about 10 to 12 inches total; check your model’s spec before choosing 3 or 4 inches. Our Gel Mattress Topper 2.0 with a washable cover and corner straps stays put when the bed is lifted vertical, which bare foam will not.
Made in Phoenix, delivered in days
Every sofa bed mattress topper we sell is poured, cut, and packaged in our own factory in Phoenix, AZ. The foam is CertiPUR-US certified, fiberglass free, and has no fire-retardant sprays, so it is safe for a guest room where kids sleep. Low odor too: we sun-bake it in Arizona before it ships.
Stock sizes ship same or next business day by FedEx Ground, free to the lower 48, and arrive in 2 to 3 business days. Unroll it on the open sofa bed and give it 24 to 48 hours to fully expand. Try it for 30 nights; if it does not fix the sleeper, send it back with no fees under our Happiness Guarantee. Every topper carries a 5-year warranty.
| Bed type | Typical mattress size | What to order |
|---|---|---|
| Queen sleeper sofa | 60 x 72 | Custom cut sofa bed queen |
| Full sleeper sofa | 52 to 54 x 72 | Custom cut sofa bed full |
| Twin sleeper / chair bed | 36 to 38 x 72 | Custom cut, measure first |
| Full futon | 54 x 75 | Stock full topper |
| Queen futon | 60 x 80 | Stock queen topper |
| Queen Murphy bed | 60 x 80 | Stock queen topper, check cabinet depth |
Questions about sofa bed mattress topper
Will a sofa bed mattress topper fold up inside the couch?
A 2 inch topper folds inside almost every sleeper sofa with the mattress still on the frame. A 3 inch topper folds into most full-size mechanisms and many queens. Measure the gap between the mattress top and the folded deck; if the topper thickness fits with half an inch to spare, leave it on. Otherwise fold it in thirds and store it under the cushions.
What size topper fits a queen sleeper sofa?
Most queen sleeper sofas use a 60 x 72 inch mattress, 8 inches shorter than a bedroom queen. A standard queen topper will hang off the end and jam the mechanism. Order a custom cut sofa bed queen at 60 x 72, or measure your mattress and send the exact numbers for a quote.
Does a topper hide the bar in a pull-out couch?
Yes, that is the main reason people buy one. Gel memory foam distributes weight across the surface, so the crossbar under a thin sleeper mattress no longer presses into your lower back. A 2 inch layer is enough to hide the bar for most adults; 3 inches adds real softness on top of that.
Can I use the same topper on a futon?
You can, as long as the sizes match. Full futons are usually 54 x 75, which is a stock full topper. Sofa bed mattresses are shorter at 72 inches. A 2 inch gel foam topper bends at the futon crease and folds back to sofa mode with the mattress, so you do not need to store it separately.
Should I get a cover and straps for a sofa bed topper?
For a sleeper sofa you fold daily, yes. The Gel Mattress Topper 2.0 has a washable cover and elastic corner straps that keep it anchored when you lift the mechanism. Bare foam grips sheets well on a bed that stays flat, but it can shift while folding. The cover also protects the foam from spills in a living room.
Will a memory foam topper make the sofa bed too hot?
Our foam is open-cell and gel-infused, which pulls heat away from the surface instead of trapping it like older memory foam. On a thin sleeper mattress there is very little foam underneath you, so heat has less to build up in. Guests who sleep warm usually find it cooler than the original mattress.
How long does it take to get a sofa bed mattress topper?
Stock sizes ship same or next business day and arrive in 2 to 3 business days by FedEx Ground, free to the lower 48. Custom sofa bed sizes get a written quote in 1 to 2 business days, and most custom pieces ship within a week of approval. Everything arrives compressed; unroll it and give it 24 to 48 hours.
Can I return a topper if it does not fit my sleeper sofa?
Stock sizes are covered by the 30-Night Happiness Guarantee with free returns and no fees. Custom sofa bed sizes are cut to your numbers and cannot be returned for size, which is why we confirm measurements in writing before cutting. Manufacturing defects on any topper are covered by the 5-year warranty.
Make the sleeper sofa a bed people want to sleep in
Pick a stock size below, or send us your sleeper's measurements for a custom 60×72 or 54×72 cut. Free shipping, 30 nights to decide.