Sleep Number

ComfortMode Lux

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.

Overall

#205 in

Mattress

according to Reddit Icon Reddit

Sentiment score70% positive
7
1
2

Top Pros

Top Cons

Last updated: May 21, 2026

Reddit Reviews

Reddit IconCamelHairy
11 months ago

Take a look at Sleep Number. They have a free 100-day inhome trial. 15 year warranty. Our first a full lasted 25 years, its replacement a queen is now past 5 years. https://www.sleepnumber.com

12 months ago

Locate a Sleep Number store and try them out. Our 1st lasted 25 years, its replacement is at 6 years. It's infinitely adjustable. https://www.sleepnumber.com

10 months ago

Take a look at Sleep Number. It's an infinitely adjustable air mattress. Our first a full lasted 25 years, it's replacement a queen now going past 5 years. They offer a 100-day in-home trial and a 15-year warranty.

Reddit IconsenderPath
3 months ago

My experience was just the opposite. I had a sleep number bed that had foam edge support and it just not very good at all on the edge. I was sliding off like crazy. I replaced it with a sterns and Foster lux estate that has special coils on the perimeter and it seems to be much better. I haven’t had it as long though.

3 months ago

I’ll chime in about using foam for edge support in a mattress. I had a sleep number mattress for years and the cover stretched so that the mattress tended to overhang the boxspring. Also, the edge support was a block of hard foam. As the years went by the hard foam just sagged in the spot where I sat to put on my shoes so I would have to find other spots to sit until I was sitting at the foot of the bed and that didn’t even work anymore. I also had to keep shoving the mattress over so it wouldn’t overhang at the edge where I sat. When it was time for me to buy a new mattress, I found one that had a special surround of springs on the edge to give a different kind of edge support. It’s too soon to know how it’ll hold up but no way I was going to buy another one with hard foam around the edge.

Reddit Iconcathatesrudy
6 months ago

We are on our second sleep number mattress. The first one was at least 5 years old when we got it from my mom (who I’m pretty sure got it used)and lasted us over ten years, so the choice to get another one was pretty easy. (All of the conventional mattresses we’ve had have gone soggy within a couple years and my back can’t handle that shit) The one we have is the first level up from the base model (it has a slightly upgraded control and thicker topper piece) and I think it was 1300 when I bought it last year during a sale (which the sale may have just been a deal on the financing interest, frankly I forget but it’s nearly paid off either way)

Reddit IconFlat_6_Theory
3 months ago

Using a firmness adjustable cooling mattress from Sleep Number. Keep it dialed up pretty dang firm because if I sink down there’s gonna be serious back pain waiting to greet me in the morning. Wife says it’s like a board, lol.

Reddit IconASV731
2 months ago

If you’ve just finished a big remodel, highly recommend checking out sleep number. They are legitimately great

Reddit IconSurge_151
3 months ago

I have a rather basic sleep number mattress and box, it’s not rated for that capacity but… I am well beyond it. So… make of that what you will. It’s the second one I’ve owed. The first one was a king, probably should have gone with king again but now we have a queen. If you’re unfamiliar, the system is pretty much an ultra rugged air mattress wrapped up in more traditional mattress covers. There’s a control box with a pump so you don’t have to blow it up (firmer) or let air out (softer) and left to right each side can set their own firmness aka sleep number. There’s a polymer box spring underneath. It’s sturdy af. It all comes flat packed and it’s a bit of a magic trick to get it all together. You’ll want some help. None of it is particularly difficult but you should have 2 people. For the bed frame, I picked a not the very cheapest tubular steel ikea thing and then doubled up the wooden slats they have for them. You’re supposed to use one roll per side spanning head to toe, and frame rail to center spar. But I bought two extras, one for each side. The extra one fits by being run toe to head, and upside down so that the wood slats fit between each other. Maybe hard to imagine but putting one in correctly makes it clear where the extra one fits. Zero problem. I had the king for 5 years. Absolutely loved it. The king got a rip in it through no fault of its own and we replaced it with our current queen, flawless for going on 13 years. It’s starting to show wear. The foam bits inside could be replaced. And that’s the real clincher… The mattress is easy to take apart and put together. The whole system is, ikea steel and all. That was one of the goals because we move so much. So I can replace the stability foam bits inside the mattress. The only problem I have recommending this is, the popular enshitification trend might be a problem. I bought all of this 13 years ago. Maybe they suck now IDK. Maybe the design is significantly different now and it won’t support my needs. I wish I could give a better endorsement, but no (zero) springs or firming wires or coil density issues. They don’t squeak although the frame does occasionally.

3 months ago

I have a rather basic sleep number mattress and box, it’s not rated for that capacity but… I am well beyond it. So… make of that what you will. It’s the second one I’ve owed. The first one was a king, probably should have gone with king again but now we have a queen. If you’re unfamiliar, the system is pretty much an ultra rugged air mattress wrapped up in more traditional mattress covers. There’s a control box with a pump so you don’t have to blow it up (firmer) or let air out (softer) and left to right each side can set their own firmness aka sleep number. There’s a polymer box spring underneath. It’s sturdy af. It all comes flat packed and it’s a bit of a magic trick to get it all together. You’ll want some help. None of it is particularly difficult but you should have 2 people. For the bed frame, I picked a not the very cheapest tubular steel ikea thing and then doubled up the wooden slats they have for them. You’re supposed to use one roll per side spanning head to toe, and frame rail to center spar. But I bought two extras, one for each side. The extra one fits by being run toe to head, and upside down so that the wood slats fit between each other. Maybe hard to imagine but putting one in correctly makes it clear where the extra one fits. Zero problem. I had the king for 5 years. Absolutely loved it. The king got a rip in it through no fault of its own and we replaced it with our current queen, flawless for going on 13 years. It’s starting to show wear. The foam bits inside could be replaced. And that’s the real clincher… The mattress is easy to take apart and put together. The whole system is, ikea steel and all. That was one of the goals because we move so much. So I can replace the stability foam bits inside the mattress. The only problem I have recommending this is, the popular enshitification trend might be a problem. I bought all of this 13 years ago. Maybe they suck now IDK. Maybe the design is significantly different now and it won’t support my needs. I wish I could give a better endorsement, but no (zero) springs or firming wires or coil density issues. They don’t squeak although the frame does occasionally.

Reddit Iconabovewater_fornow
2 months ago

That's too bad. I had the opposite experience. Have had mine for about 12 years, just needed to replace the outer foam with them after a decade. Works great for two side sleepers of very different sizes and weights, so we can each set the right firmness.

Reddit IconAlmightyZeth
5 months ago

Its a bit of an investment but so far 7 years in and it has been the best purchase ever. Sleep Number. Not only do you adjust the firmness you want but every time you get off it resets. No one lump, not one sag. Only every once in a while do you have to play with the air so you ass isnt in the hard surface below. But add air on the app and fixed. So worth the money in my opinion.

Rankings by Use Case

Top recommendations from others in the same boat

Best for Ease of movement & sex

Novaform - Platinum 16.5" Luxury Hybrid Mattress

Top pick

Novaform - Platinum 16.5" Luxury Hybrid Mattress

Individuals who toss and turn frequently, or couples who prioritize a mattress that is responsive and bouncy for sexual activity, and dislike the "sinking" feeling of memory foam.
See rankings →

Best for Heavy & plus-size sleepers

Big Fig - Classic Mattress

Top pick

Big Fig - Classic Mattress

Individuals with higher body weights (typically 230 lbs or more) who find that standard mattresses quickly sag, lose support, and cause back or joint pain.
See rankings →

Best for Hot sleepers

Purple - The Purple Mattress

Top pick

Purple - The Purple Mattress

Individuals who consistently wake up feeling hot or sweaty, and find that their mattress absorbs and retains body heat throughout the night.
See rankings →

Best for Long-term durability

SleepOnLatex - Pure Green Organic Latex Mattress

Top pick

SleepOnLatex - Pure Green Organic Latex Mattress

Buyers who view a mattress as a long-term investment and want to purchase one that will maintain its support and comfort for over a decade, prioritizing total cost of ownership over a low initial price.
See rankings →

Best for Motion isolation for couples

Helix - Midnight Luxe

Top pick

Helix - Midnight Luxe

Couples or co-sleepers who are easily woken up by a partner's tossing, turning, or getting in and out of bed.
See rankings →

Best for Natural & organic materials

SleepOnLatex - Pure Green Organic Latex Mattress

Top pick

SleepOnLatex - Pure Green Organic Latex Mattress

Health-conscious individuals or those with chemical sensitivities who want to avoid synthetic foams, chemical off-gassing, and potentially hazardous materials like fiberglass in their sleep environment.
See rankings →

Other Reddit Recommendations: